Charles Spencer Chaplin was born on 16 April 1889 to Hannah Chaplin (born Hannah Harriet Pedlingham Hill) and Charles Chaplin Sr. There is no official record of his birth, although Chaplin believed he was born at East Street, Walworth, in South London. His mother and father had married four years previously, at which time Charles Sr. became the legal carer of Hannah's illegitimate son, Sydney John Hill. At the time of his birth, Chaplin's parents were both music hall entertainers. Hannah, the daughter of a shoemaker, had a brief and unsuccessful career under the stage name Lily Harley, while Charles Sr., a butcher's son, was a popular singer. Although they never divorced, Chaplin's parents were estranged by around 1891. The following year, Hannah gave birth to a third son – George Wheeler Dryden – fathered by the music hall entertainer Leo Dryden. The child was taken by Dryden at six months old, and did not re-enter Chaplin's life for 30 years.

Chaplin returned to comedy for his next project. Setting his standards high, he told himself "This next film must be an epic! The Greatest!" Inspired by a photograph of the 1898 Klondike Gold Rush, and later the story of the Donner Party of 1846–47, he made what Geoffrey Macnab calls "an epic comedy out of grim subject matter." In The Gold Rush, the Tramp is a lonely prospector fighting adversity and looking for love. With Georgia Hale as his new leading lady, Chaplin began filming the picture in February 1924. Its elaborate production, costing almost $1 million, included location shooting in the Truckee mountains with 600 extras, extravagant sets, and special effects. The last scene was shot May 1925 after 15 months of filming.

Between his time in the poor schools and his mother succumbing to mental illness, Chaplin began to perform on stage. He later recalled making his first amateur appearance at the age of five years, when he took over from Hannah one night in Aldershot. This was an isolated occurrence, but by the time he was nine Chaplin had, with his mother's encouragement, grown interested in performing. He later wrote: "[she] imbued me with the feeling that I had some sort of talent". Through his father's connections, Chaplin became a member of the Eight Lancashire Lads clog-dancing troupe, with whom he toured English music halls throughout 1899 and 1900. Chaplin worked hard, and the act was popular with audiences, but he was not satisfied with dancing and wished to form a comedy act.

In the years Chaplin was touring with the Eight Lancashire Lads, his mother ensured that he still attended school but, by age 13, he had abandoned education. He supported himself with a range of jobs, while nursing his ambition to become an actor. At 14, shortly after his mother's relapse, he registered with a theatrical agency in London's West End. The manager sensed potential in Chaplin, who was promptly given his first role as a newsboy in Harry Arthur Saintsbury's Jim, a Romance of Cockayne. It opened in July 1903, but the show was unsuccessful and closed after two weeks. Chaplin's comic performance, however, was singled out for praise in many of the reviews.

Saintsbury secured a role for Chaplin in Charles Frohman's production of Sherlock Holmes, where he played Billy the pageboy in three nationwide tours. His performance was so well received that he was called to London to play the role alongside william Gillette, the original Holmes. "It was like tidings from heaven", Chaplin recalled. At 16 years old, Chaplin starred in the play's West End production at the Duke of York's Theatre from October to December 1905. He completed one final tour of Sherlock Holmes in early 1906, before leaving the play after more than two-and-a-half years.

Meanwhile, Sydney Chaplin had joined Fred Karno's prestigious comedy company in 1906 and, by 1908, he was one of their key performers. In February, he managed to secure a two-week trial for his younger brother. Karno was initially wary, and considered Chaplin a "pale, puny, sullen-looking youngster" who "looked much too shy to do any good in the theatre." However, the teenager made an impact on his first night at the London Coliseum and he was quickly signed to a contract. Chaplin began by playing a series of minor parts, eventually progressing to starring roles in 1909. In April 1910, he was given the lead in a new Sketch, Jimmy the Fearless. It was a big success, and Chaplin received considerable press attention.

Karno selected his new star to join the section of the company, one that also included Stan Laurel, that toured North America's vaudeville circuit. The young Comedian headed the show and impressed reviewers, being described as "one of the best pantomime artists ever seen here". His most successful role was a drunk called the "Inebriate Swell", which drew him significant recognition. The tour lasted 21 months, and the troupe returned to England in June 1912. Chaplin recalled that he "had a disquieting feeling of sinking back into a depressing commonplaceness" and was, therefore, delighted when a new tour began in October.

The Essanay Film Manufacturing Company of Chicago sent Chaplin an offer of $1,250 a week with a signing bonus of $10,000. He joined the studio in late December 1914, where he began forming a stock company of regular players, including Leo White, Bud Jamison, Paddy McGuire and Billy Armstrong. He soon recruited a leading lady – Edna Purviance, whom Chaplin met in a cafe and hired on account of her beauty. She went on to appear in 35 films with Chaplin over eight years; the pair also formed a romantic relationship that lasted into 1917.

During 1915, Chaplin became a cultural phenomenon. Shops were stocked with Chaplin merchandise, he was featured in cartoons and comic strips, and several songs were written about him. In July, a Journalist for Motion Picture Magazine wrote that "Chaplinitis" had spread across America. As his fame grew worldwide, he became the film industry's first international star. When the Essanay contract ended in December 1915, Chaplin – fully aware of his popularity – requested a $150,000 signing bonus from his next studio. He received several offers, including Universal, Fox, and Vitagraph, the best of which came from the Mutual Film Corporation at $10,000 a week.

Mutual gave Chaplin his own Los Angeles studio to work in, which opened in March 1916. He added two key members to his stock company, Albert Austin and Eric Campbell, and produced a series of elaborate two-reelers: The Floorwalker, The Fireman, The Vagabond, One A.M., and The Count. For The Pawnshop, he recruited the actor Henry Bergman, who was to work with Chaplin for 30 years. Behind the Screen and The Rink completed Chaplin's releases for 1916. The Mutual contract stipulated that he release a two-reel film every four weeks, which he had managed to achieve. With the new year, however, Chaplin began to demand more time. He made only four more films for Mutual over the first ten months of 1917: Easy Street, The Cure, The Immigrant, and The Adventurer. With their careful construction, these films are considered by Chaplin scholars to be among his finest work. Later in life, Chaplin referred to his Mutual years as the happiest period of his career. However, Chaplin also felt that those films became increasingly formulaic over the period of the contract and he was increasingly dissatisfied with the working conditions encouraging that.

Six of Chaplin's films have been selected for preservation in the National Film Registry by the United States Library of Congress: The Immigrant (1917), The Kid (1921), The Gold Rush (1925), City Lights (1931), Modern Times (1936), and The Great Dictator (1940).

Chaplin's legacy is managed on behalf of his children by the Chaplin office, located in Paris. The office represents Association Chaplin, founded by some of his children "to protect the name, image and moral rights" to his body of work, Roy Export SAS, which owns the copyright to most of his films made after 1918, and Bubbles Incorporated S.A., which owns the copyrights to his image and name. Their central archive is held at the archives of Montreux, Switzerland and scanned versions of its contents, including 83,630 images, 118 scripts, 976 manuscripts, 7,756 letters, and thousands of other documents, are available for research purposes at the Chaplin Research Centre at the Cineteca di Bologna. The photographic archive, which includes approximately 10,000 photographs from Chaplin's life and career, is kept at the Musée de l'Elysée in Lausanne, Switzerland. The British Film Institute has also established the Charles Chaplin Research Foundation, and the first international Charles Chaplin Conference was held in London in July 2005.

Losing the child, plus his own childhood experiences, are thought to have influenced Chaplin's film, which turned the Tramp into the caretaker of a young boy. For this new venture, Chaplin also wished to do more than comedy and, according to Louvish, "make his mark on a changed world." Filming on The Kid began in August 1919, with four-year-old Jackie Coogan his co-star. It was developing into a long project, so to placate First National, he halted production and quickly filmed A Day's Pleasure. The Kid was in production for nine months until May 1920 and, at 68 minutes, it was Chaplin's longest picture to date. Dealing with issues of poverty and parent–child separation, The Kid was one of the earliest films to combine comedy and drama. It was released in January 1921 with instant success, and, by 1924, had been screened in over 50 countries.

Chaplin spent five months on his next film, the two-reeler The Idle Class. Following its September 1921 release, he chose to return to England for the first time in almost a decade. He then worked to fulfil his First National contract, releasing Pay Day in February 1922. The Pilgrim – his final short film – was delayed by distribution disagreements with the studio, and released a year later.

Having fulfilled his First National contract, Chaplin was free to make his first picture as an independent Producer. In November 1922, he began filming A Woman of Paris, a romantic drama about ill-fated lovers. Chaplin intended it to be a star-making vehicle for Edna Purviance, and did not appear in the picture himself other than in a brief, uncredited cameo. He wished the film to have a realistic feel and directed his cast to give restrained performances. In real life, he explained, "men and women try to hide their emotions rather than seek to express them". A Woman of Paris premiered in September 1923 and was acclaimed for its innovative, subtle approach. The public, however, seemed to have little interest in a Chaplin film without Chaplin, and it was a box office disappointment. The filmmaker was hurt by this failure – he had long wanted to produce a dramatic film and was proud of the result – and soon withdrew A Woman of Paris from circulation.

As a filmmaker, Chaplin is considered a pioneer and one of the most influential figures of the early twentieth century. He is often credited as one of the medium's first artists. Film Historian Mark Cousins has written that Chaplin "changed not only the imagery of cinema, but also its sociology and grammar" and claims that Chaplin was as important to the development of comedy as a genre as D.W. Griffith was to drama. He was the first to popularise feature-length comedy and to slow down the pace of action, adding pathos and subtlety to it. Although his work is mostly Classified as slapstick, Chaplin's drama A Woman of Paris (1923) was a major influence on Ernst Lubitsch's film The Marriage Circle (1924) and thus played a part in the development of "sophisticated comedy". According to David Robinson, Chaplin's innovations were "rapidly assimilated to become part of the Common practice of film craft." Filmmakers who cited Chaplin as an influence include Federico Fellini (who called Chaplin "a sort of Adam, from whom we are all descended"), Jacques Tati ("Without him I would never have made a film"), René Clair ("He inspired practically every filmmaker"), Michael Powell, Billy Wilder, Vittorio De Sica, and Richard Attenborough. Russian filmmaker Andrei Tarkovsky praised Chaplin as "the only person to have gone down into cinematic history without any Shadow of a doubt. The films he left behind can never grow old."

While making The Gold Rush, Chaplin married for the second time. Mirroring the circumstances of his first union, Lita Grey was a teenage Actress, originally set to star in the film, whose surprise announcement of pregnancy forced Chaplin into marriage. She was 16 and he was 35, meaning Chaplin could have been charged with statutory rape under California law. He therefore arranged a discreet marriage in Mexico on 25 November 1924. Their first son, Charles Spencer Chaplin, Jr., was born on 5 May 1925, followed by Sydney Earl Chaplin on 30 March 1926.

The infusion of pathos is a well-known aspect of Chaplin's work, and Larcher notes his reputation for "[inducing] laughter and tears". Sentimentality in his films comes from a variety of sources, with Louvish pinpointing "personal failure, society's strictures, economic disaster, and the elements." Chaplin sometimes drew on tragic events when creating his films, as in the case of The Gold Rush (1925), which was inspired by the fate of the Donner Party. Constance B. Kuriyama has identified serious underlying themes in the early comedies, such as greed (The Gold Rush) and loss (The Kid). Chaplin also touched on controversial issues: immigration (The Immigrant, 1917); illegitimacy (The Kid, 1921); and drug use (Easy Street, 1917). He often explored these topics ironically, making comedy out of suffering.

It was an unhappy marriage, and Chaplin spent long hours at the studio to avoid seeing his wife. In November 1926, Grey took the children and left the family home. A bitter divorce followed, in which Grey's application – accusing Chaplin of infidelity, abuse, and of harbouring "perverted sexual desires" – was leaked to the press. Chaplin was reported to be in a state of nervous breakdown, as the story became headline news and groups formed across America calling for his films to be banned. Eager to end the case without further scandal, Chaplin's lawyers agreed to a cash settlement of $600,000 – the largest awarded by American courts at that time. His fan base was strong enough to survive the incident, and it was soon forgotten, but Chaplin was deeply affected by it.

Before the divorce suit was filed, Chaplin had begun work on a new film, The Circus. He built a story around the idea of walking a tightrope while besieged by monkeys, and turned the Tramp into the accidental star of a circus. Filming was suspended for 10 months while he dealt with the divorce scandal, and it was generally a trouble-ridden production. Finally completed in October 1927, The Circus was released in January 1928 to a positive reception. At the 1st Academy Awards, Chaplin was given a special trophy "For versatility and genius in acting, writing, directing and producing The Circus". Despite its success, he permanently associated the film with the stress of its production; Chaplin omitted The Circus from his autobiography, and struggled to work on it when he recorded the score in his later years.

When filming began at the end of 1928, Chaplin had been working on the story for almost a year. City Lights followed the Tramp's love for a blind flower girl (played by Virginia Cherrill) and his efforts to raise money for her sight-saving operation. It was a challenging production that lasted 21 months, with Chaplin later confessing that he "had worked himself into a neurotic state of wanting perfection". One advantage Chaplin found in sound Technology was the opportunity to record a musical score for the film, which he composed himself.

Chaplin received three Academy Awards: an Honorary Award for "versatility and genius in acting, writing, directing, and producing The Circus" in 1929, a second Honorary Award for "the incalculable effect he has had in making motion pictures the art form of this century" in 1972, and a Best Score award in 1973 for Limelight (shared with Ray Rasch and Larry Russell). He was further nominated in the Best Actor, Best Original Screenplay, and Best Picture (as producer) categories for The Great Dictator, and received another Best Original Screenplay nomination for Monsieur Verdoux. In 1976, Chaplin was made a Fellow of the British Academy of Film and Television Arts (BAFTA).

Chaplin finished editing City Lights in December 1930, by which time silent films were an anachronism. A preview before an unsuspecting public audience was not a success, but a showing for the press produced positive reviews. One Journalist wrote, "Nobody in the world but Charlie Chaplin could have done it. He is the only person that has that peculiar something called 'audience appeal' in sufficient quality to defy the popular penchant for movies that talk." Given its general release in January 1931, City Lights proved to be a popular and financial success – eventually grossing over $3 million. The British Film Institute cites it as Chaplin's finest accomplishment, and the critic James Agee hails the closing scene as "the greatest piece of acting and the highest moment in movies". City Lights became Chaplin's personal favourite of his films and remained so throughout his life.

City Lights had been a success, but Chaplin was unsure if he could make another picture without dialogue. He remained convinced that sound would not work in his films, but was also "obsessed by a depressing fear of being old-fashioned." In this state of uncertainty, early in 1931, the Comedian decided to take a holiday and ended up travelling for 16 months. He spent months travelling Western Europe, including extended stays in France and Switzerland, and spontaneously decided to visit Japan. The day after he arrived in Japan, Prime Minister Inukai Tsuyoshi was assassinated by ultra-nationalists in the May 15 Incident. The group's original plan had been to provoke a war with the United States by assassinating Chaplin at a welcome reception organised by the prime minister, but the plan had been foiled due to delayed public announcement of the event's date.

In his autobiography, Chaplin recalled that on his return to Los Angeles, "I was confused and without plan, restless and conscious of an extreme loneliness". He briefly considered retiring and moving to China. Chaplin's loneliness was relieved when he met 21-year-old Actress Paulette Goddard in July 1932, and the pair began a relationship. He was not ready to commit to a film, however, and focused on writing a serial about his travels (published in Woman's Home Companion). The trip had been a stimulating experience for Chaplin, including meetings with several prominent thinkers, and he became increasingly interested in world affairs. The state of labour in America troubled him, and he feared that capitalism and machinery in the workplace would increase unemployment levels. It was these concerns that stimulated Chaplin to develop his new film.

Chaplin's compositions produced three popular songs. "Smile", composed originally for Modern Times (1936) and later set to lyrics by John Turner and Geoffrey Parsons, was a hit for Nat King Cole in 1954. For Limelight, Chaplin composed "Terry's Theme", which was popularised by Jimmy Young as "Eternally" (1952). Finally, "This Is My Song", performed by Petula Clark for A Countess from Hong Kong (1967), reached number one on the UK and other European charts. Chaplin also received his only competitive Oscar for his composition work, as the Limelight theme won an Academy Award for Best Original Score in 1973 following the film's re-release.

Following the release of Modern Times, Chaplin left with Goddard for a trip to the Far East. The couple had refused to comment on the nature of their relationship, and it was not known whether they were married or not. Some time later, Chaplin revealed that they married in Canton during this trip. By 1938, the couple had drifted apart, as both focused heavily on their work, although Goddard was again his leading lady in his next feature film, The Great Dictator. She eventually divorced Chaplin in Mexico in 1942, citing incompatibility and separation for more than a year.

Chaplin spent two years developing the script, and began filming in September 1939 – six days after Britain declared war on Germany. He had submitted to using spoken dialogue, partly out of acceptance that he had no other choice, but also because he recognised it as a better method for delivering a political message. Making a comedy about Hitler was seen as highly controversial, but Chaplin's financial independence allowed him to take the risk. "I was determined to go ahead," he later wrote, "for Hitler must be laughed at." Chaplin replaced the Tramp (while wearing similar attire) with "A Jewish Barber", a reference to the Nazi party's belief that he was Jewish. In a dual performance, he also played the dictator "Adenoid Hynkel", who parodied Hitler.

Regarding the structure of Chaplin's films, the scholar Gerald Mast sees them as consisting of sketches tied together by the same theme and setting, rather than having a tightly unified storyline. Visually, his films are simple and economic, with scenes portrayed as if set on a stage. His approach to filming was described by the art Director Eugène Lourié: "Chaplin did not think in 'artistic' images when he was shooting. He believed that action is the main thing. The camera is there to photograph the actors". In his autobiography, Chaplin wrote, "Simplicity is best ... pompous effects slow up action, are boring and unpleasant ... The camera should not intrude." This approach has prompted criticism, since the 1940s, for being "old fashioned", while the film scholar Donald McCaffrey sees it as an indication that Chaplin never completely understood film as a medium. Kamin, however, comments that Chaplin's comedic talent would not be enough to remain funny on screen if he did not have an "ability to conceive and direct scenes specifically for the film medium".

Barry's child, Carol Ann, was born in October 1944, and the paternity suit went to court in February 1945. After two arduous trials, in which the prosecuting Lawyer accused him of "moral turpitude", Chaplin was declared to be the father. Evidence from blood tests which indicated otherwise were not admissible, and the judge ordered Chaplin to pay child support until Carol Ann turned 21. Media coverage of the paternity suit was influenced by the FBI, as information was fed to the prominent gossip columnist Hedda Hopper, and Chaplin was portrayed in an overwhelmingly critical light.

Chaplin claimed that the Barry trials had "crippled [his] creativeness", and it was some time before he began working again. In April 1946, he finally began filming a project that had been in development since 1942. Monsieur Verdoux was a black comedy, the story of a French bank clerk, Verdoux (Chaplin), who loses his job and begins marrying and murdering wealthy widows to support his family. Chaplin's inspiration for the project came from Orson Welles, who wanted him to star in a film about the French serial killer Henri Désiré Landru. Chaplin decided that the concept would "make a wonderful comedy", and paid Welles $5,000 for the idea.

Chaplin denied being a communist, instead calling himself a "peacemonger", but felt the government's effort to suppress the ideology was an unacceptable infringement of civil liberties. Unwilling to be quiet about the issue, he openly protested against the trials of Communist Party members and the activities of the House Un-American Activities Committee. Chaplin received a subpoena to appear before HUAC but was not called to testify. As his activities were widely reported in the press, and Cold War fears grew, questions were raised over his failure to take American citizenship. Calls were made for him to be deported; in one extreme and widely published Example, Representative John E. Rankin, who helped establish HUAC, told Congress in June 1947: "[Chaplin's] very life in Hollywood is detrimental to the moral fabric of America. [If he is deported] ... his loathsome pictures can be kept from before the eyes of the American youth. He should be deported and gotten rid of at once."

Chaplin remained a controversial figure throughout the 1950s, especially after he was awarded the International Peace Prize by the communist-led World Peace Council, and after his meetings with Zhou Enlai and Nikita Khrushchev. He began developing his first European film, A King in New York, in 1954. Casting himself as an exiled king who seeks asylum in the United States, Chaplin included several of his recent experiences in the screenplay. His son, Michael, was cast as a boy whose parents are targeted by the FBI, while Chaplin's character faces accusations of communism. The political satire parodied HUAC and attacked elements of 1950s culture – including consumerism, plastic surgery, and wide-screen cinema. In a review, the Playwright John Osborne called it Chaplin's "most bitter" and "most openly personal" film.

Filming began in November 1951, by which time Chaplin had spent three years working on the story. He aimed for a more serious tone than any of his previous films, regularly using the word "melancholy" when explaining his plans to his co-star Claire Bloom. Limelight featured a cameo appearance from Buster Keaton, whom Chaplin cast as his stage partner in a pantomime scene. This marked the only time the comedians worked together.

Several of Chaplin's films incorporate autobiographical elements, and the Psychologist Sigmund Freud believed that Chaplin "always plays only himself as he was in his dismal youth". The Kid is thought to reflect Chaplin's childhood trauma of being sent into an orphanage, the main characters in Limelight (1952) contain elements from the lives of his parents, and A King in New York references Chaplin's experiences of being shunned by the United States. Many of his sets, especially in street scenes, bear a strong similarity to Kennington, where he grew up. Stephen M. Weissman has argued that Chaplin's problematic relationship with his mentally ill mother was often reflected in his female characters and the Tramp's Desire to save them.

Chaplin did not attempt to return to the United States after his re-entry permit was revoked, and instead sent his wife to settle his affairs. The couple decided to settle in Switzerland and, in January 1953, the family moved into their permanent home: Manoir de Ban, a 14-hectare (35-acre) estate overlooking Lake Geneva in Corsier-sur-Vevey. Chaplin put his Beverly Hills house and studio up for sale in March, and surrendered his re-entry permit in April. The next year, his wife renounced her US citizenship and became a British citizen. Chaplin severed the last of his professional ties with the United States in 1955, when he sold the remainder of his stock in United Artists, which had been in financial difficulty since the early 1940s.

Chaplin founded a new production company, Attica, and used Shepperton Studios for the shooting. Filming in England proved a difficult experience, as he was used to his own Hollywood studio and familiar crew, and no longer had limitless production time. According to Robinson, this had an effect on the quality of the film. A King in New York was released in September 1957, and received mixed reviews. Chaplin banned American journalists from its Paris première and decided not to release the film in the United States. This severely limited its revenue, although it achieved moderate commercial success in Europe. A King in New York was not shown in America until 1973.

In the last two decades of his career, Chaplin concentrated on re-editing and scoring his old films for re-release, along with securing their ownership and distribution rights. In an interview he granted in 1959, the year of his 70th birthday, Chaplin stated that there was still "room for the Little Man in the atomic age". The first of these re-releases was The Chaplin Revue (1959), which included new versions of A Dog's Life, Shoulder Arms, and The Pilgrim.

Chaplin suffered a series of minor strokes in the late 1960s, which marked the beginning of a slow decline in his health. Despite the setbacks, he was soon writing a new film script, The Freak, a story of a winged girl found in South America, which he intended as a starring vehicle for his daughter, Victoria. His fragile health prevented the project from being realised. In the early 1970s, Chaplin concentrated on re-releasing his old films, including The Kid and The Circus. In 1971, he was made a Commander of the National Order of the Legion of Honour at the Cannes Film Festival. The following year, he was honoured with a special award by the Venice Film Festival.

In America, the political atmosphere began to change and attention was once again directed to Chaplin's films instead of his views. In July 1962, The New York Times published an editorial stating that "we do not believe the Republic would be in danger if yesterday's unforgotten little tramp were allowed to amble down the gangplank of a steamer or plane in an American port". The same month, Chaplin was invested with the honorary degree of Doctor of Letters by the universities of Oxford and Durham. In November 1963, the Plaza Theater in New York started a year-long series of Chaplin's films, including Monsieur Verdoux and Limelight, which gained excellent reviews from American critics. September 1964 saw the release of Chaplin's memoirs, My Autobiography, which he had been working on since 1957. The 500-page book, which focused on his early years and personal life, became a worldwide best-seller, despite criticism over the lack of information on his film career.

Shortly after the publication of his memoirs, Chaplin began work on A Countess from Hong Kong (1967), a romantic comedy based on a script he had written for Paulette Goddard in the 1930s. Set on an ocean liner, it starred Marlon Brando as an American ambassador and Sophia Loren as a stowaway found in his cabin. The film differed from Chaplin's earlier productions in several aspects. It was his first to use Technicolor and the widescreen format, while he concentrated on directing and appeared on-screen only in a cameo role as a seasick steward. He also signed a deal with Universal Pictures and appointed his assistant, Jerome Epstein, as the Producer. Chaplin was paid $600,000 director's fee as well as a percentage of the gross receipts. A Countess from Hong Kong premiered in January 1967, to unfavourable reviews, and was a box-office failure. Chaplin was deeply hurt by the negative reaction to the film, which turned out to be his last.

Although Chaplin still had plans for Future film projects, by the mid-1970s he was very frail. He experienced several further strokes, which made it difficult for him to communicate, and he had to use a wheelchair. His final projects were compiling a pictorial autobiography, My Life in Pictures (1974) and scoring A Woman of Paris for re-release in 1976. He also appeared in a documentary about his life, The Gentleman Tramp (1975), directed by Richard Patterson. In the 1975 New Year Honours, Chaplin was awarded a knighthood by Queen Elizabeth II, though he was too weak to kneel and received the honour in his wheelchair.

From the film industry, Chaplin received a special Golden Lion at the Venice Film Festival in 1972, and a Lifetime Achievement Award from the Lincoln Center Film Society the same year. The latter has since been presented annually to filmmakers as The Chaplin Award. Chaplin was given a star on the Hollywood Walk of Fame in 1972, having been previously excluded because of his political beliefs.

Chaplin received many awards and honours, especially later in life. In the 1975 New Year Honours, he was appointed a Knight Commander of the Most Excellent Order of the British Empire (KBE). He was also awarded honorary Doctor of Letters degrees by the University of Oxford and the University of Durham in 1962. In 1965, he and Ingmar Bergman were joint winners of the Erasmus Prize and, in 1971, he was appointed a Commander of the National Order of the Legion of Honour by the French government.

By October 1977, Chaplin's health had declined to the point that he needed constant care. In the early morning of 25 December 1977, Chaplin died at home after suffering a stroke in his sleep. He was 88 years old. The funeral, on 27 December, was a small and private Anglican ceremony, according to his wishes. Chaplin was interred in the Corsier-sur-Vevey cemetery. Among the film industry's tributes, Director René Clair wrote, "He was a monument of the cinema, of all countries and all times ... the most beautiful gift the cinema made to us." Actor Bob Hope declared, "We were lucky to have lived in his time."

On 1 March 1978, Chaplin's coffin was dug up and stolen from its grave by two unemployed immigrants, Roman Wardas, from Poland, and Gantcho Ganev, from Bulgaria. The body was held for ransom in an attempt to extort money from Oona Chaplin. The pair were caught in a large police operation in May, and Chaplin's coffin was found buried in a field in the nearby village of Noville. It was re-interred in the Corsier cemetery surrounded by reinforced concrete.

Chaplin has also been characterised in literary fiction. He is the protagonist of Robert Coover's short story "Charlie in the House of Rue" (1980; reprinted in Coover's 1987 collection A Night at the Movies), and of Glen David Gold's Sunnyside (2009), a historical novel set in the First World War period. A day in Chaplin's life in 1909 is dramatised in the chapter entitled "Modern Times" in Alan Moore's Jerusalem (2016), a novel set in the author's home town of Northampton, England.

In London, a statue of Chaplin as the Tramp, sculpted by John Doubleday and unveiled in 1981, is located in Leicester Square. The city also includes a road named after him in central London, "Charlie Chaplin Walk", which is the location of the BFI IMAX. There are nine blue plaques memorialising Chaplin in London, Hampshire, and Yorkshire. The Swiss town of Vevey named a park in his honour in 1980 and erected a statue there in 1982. In 2011, two large murals depicting Chaplin on two 14-storey buildings were also unveiled in Vevey. Chaplin has also been honoured by the Irish town of Waterville, where he spent several summers with his family in the 1960s. A statue was erected in 1998; since 2011, the town has been host to the annual Charlie Chaplin Comedy Film Festival, which was founded to celebrate Chaplin's legacy and to showcase new comic talent.

Chaplin's life has also been the subject of several stage productions. Two musicals, Little Tramp and Chaplin, were produced in the early 1990s. In 2006, Thomas Meehan and Christopher Curtis created another musical, Limelight: The Story of Charlie Chaplin, which was first performed at the La Jolla Playhouse in San Diego in 2010. It was adapted for Broadway two years later, re-titled Chaplin – A Musical. Chaplin was portrayed by Robert McClure in both productions. In 2013, two plays about Chaplin premiered in Finland: Chaplin at the Svenska Teatern, and Kulkuri (The Tramp) at the Tampere Workers' Theatre.

Chaplin is the subject of a biographical film, Chaplin (1992) directed by Richard Attenborough, and starring Robert Downey Jr. in the title role. He is also a character in the period drama film The Cat's Meow (2001), played by Eddie Izzard, and in the made-for-television movie The Scarlett O'Hara War (1980), played by Clive Revill. A television series about Chaplin's childhood, Young Charlie Chaplin, ran on PBS in 1989, and was nominated for an Emmy Award for Outstanding Children's Program.

In 1998, the film critic Andrew Sarris called Chaplin "arguably the single most important Artist produced by the cinema, certainly its most extraordinary performer and probably still its most universal icon". He is described by the British Film Institute as "a towering figure in world culture", and was included in Time magazine's list of the "100 Most Important People of the 20th Century" for the "laughter [he brought] to millions" and because he "more or less invented global recognizability and helped turn an industry into an art".

The image of the Tramp has become a part of cultural history; according to Simon Louvish, the character is recognisable to people who have never seen a Chaplin film, and in places where his films are never shown. The critic Leonard Maltin has written of the "unique" and "indelible" nature of the Tramp, and argued that no other Comedian matched his "worldwide impact". Praising the character, Richard Schickel suggests that Chaplin's films with the Tramp contain the most "eloquent, richly comedic expressions of the human spirit" in movie history. Memorabilia connected to the character still fetches large sums in auctions: in 2006 a Bowler hat and a bamboo cane that were part of the Tramp's costume were bought for $140,000 in a Los Angeles auction.

In other tributes, a minor planet, 3623 Chaplin – discovered by Soviet Astronomer Lyudmila Karachkina in 1981 – is named after Chaplin. Throughout the 1980s, the Tramp image was used by IBM to advertise their personal computers. Chaplin's 100th birthday anniversary in 1989 was marked with several events around the world, and on 15 April 2011, a day before his 122nd birthday, Google celebrated him with a special Google Doodle video on its global and other country-wide homepages. Many countries, spanning six continents, have honoured Chaplin with a postal stamp.

In the 21st century, several of Chaplin's films are still regarded as classics and among the greatest ever made. The 2012 Sight & Sound poll, which compiles "top ten" ballots from film critics and Directors to determine each group's most acclaimed films, saw City Lights rank among the critics' top 50, Modern Times inside the top 100, and The Great Dictator and The Gold Rush placed in the top 250. The top 100 films as voted on by Directors included Modern Times at number 22, City Lights at number 30, and The Gold Rush at number 91. Every one of Chaplin's features received a vote. In 2007, the American Film Institute named City Lights the 11th greatest American film of all time, while The Gold Rush and Modern Times again ranked in the top 100. Books about Chaplin continue to be published regularly, and he is a popular subject for media scholars and film archivists. Many of Chaplin's film have had a DVD and Blu-Ray release.

As Chaplin was not a trained musician, he could not read sheet music and needed the help of professional composers, such as David Raksin, Raymond Rasch and Eric James, when creating his scores. Musical Directors were employed to oversee the recording process, such as Alfred Newman for City Lights. Although some critics have claimed that credit for his film music should be given to the composers who worked with him, Raksin – who worked with Chaplin on Modern Times – stressed Chaplin's creative position and active participation in the composing process. This process, which could take months, would start with Chaplin describing to the composer(s) exactly what he wanted and singing or playing tunes he had improvised on the piano. These tunes were then developed further in a close collaboration among the composer(s) and Chaplin. According to film Historian Jeffrey Vance, "although he relied upon associates to arrange varied and complex instrumentation, the musical imperative is his, and not a note in a Chaplin musical score was placed there without his assent."

Chaplin's final home, Manoir de Ban in Corsier-sur-Vevey, Switzerland, has been converted into a museum named "Chaplin's World". It opened on 17 April 2016 after 15 years of development, and is described by Reuters as "an interactive museum showcasing the life and works of Charlie Chaplin". On the 128th anniversary of his birth, a record-setting 662 people dressed as the Tramp in an event organised by the museum. Previously, the Museum of the Moving Image in London held a permanent display on Chaplin, and hosted a dedicated exhibition to his life and career in 1988. The London Film Museum hosted an exhibition called Charlie Chaplin – The Great Londoner, from 2010 until 2013.

Six months into the second American tour, Chaplin was invited to join the New York Motion Picture Company. A representative who had seen his performances thought he could replace Fred Mace, a star of their Keystone Studios who intended to leave. Chaplin thought the Keystone comedies "a crude mélange of rough and rumble", but liked the idea of working in films and rationalised: "Besides, it would mean a new life." He met with the company and signed a $150-per-week ($3,714 in 2017 dollars) contract in September 1913.