Festus Claudius "Claude" McKay (September 15, 1889 – May 22, 1948) was a Jamaican writer and poet, who was a seminal figure in the Harlem Renaissance. He wrote four novels: Home to Harlem (1928), a best-seller that won the Harmon Gold Award for Literature, Banjo (1929), Banana Bottom (1933), and in 1941 a manuscript called Amiable With Big Teeth: A Novel of the Love Affair Between the Communists and the Poor Black Sheep of Harlem which remained unpublished until 2017. McKay also authored collections of poetry, a collection of short stories, Gingertown (1932), two autobiographical books, A Long Way from Home (1937) and My Green Hills of Jamaica (published posthumously), and a non-fiction, socio-historical treatise entitled Harlem: Negro Metropolis (1940). His 1922 poetry collection, Harlem Shadows, was among the first books published during the Harlem Renaissance. His Selected Poems was published posthumously, in 1953.

McKay was attracted to communism in his early life, but he always asserted that he never became an official member of the Communist Party USA. However, some scholars dispute the claim that he was not a communist at that time, noting his close ties to active members, his attendance at communist-led events, and his months-long stay in the Soviet Union in 1922–23, which he wrote about very favorably. He gradually became disillusioned with communism, however, and by the mid-1930s, had begun to write negatively about it.

In 1919 McKay arrived in London, where he would frequently visit two clubs, one in Drury Lane, a soldier's club and the other in Shoreditch, the International Socialist Club. A militant atheist, he also joined the Rationalist Press Association. It was during this period that McKay's commitment to socialism deepened and he read Marx assiduously. At the International Socialist Club, McKay met Shapurji Saklatvala, A. J. Cook, Guy Aldred, Jack Tanner, Arthur McManus, William Gallacher, Sylvia Pankhurst and George Lansbury. He was soon invited to write for Workers' Dreadnought.

In April 1920, the Daily Herald, a socialist paper published by George Lansbury, included a racist article written by E. D. Morel. Entitled "Black Scourge in Europe: Sexual Horror Let Loose by France on the Rhine", it insinuated gross hypersexuality on black people in general, but Lansbury refused to print McKay's response. This response then appeared in Workers' Dreadnought. Since January 1920, he had been involved with the Workers' Dreadnought and the Workers' Socialist Federation, a Council Communist group active in the East End and which had a majority of women involved in it at all levels of the organization. He became a paid journalist for the paper; some people claim he was the first black journalist in Britain. He attended the Communist Unity Conference that established the Communist Party of Great Britain. At this time he also had some of his poetry published in the Cambridge Magazine, edited by C. K. Ogden.

When Sylvia Pankhurst was arrested under the Defence of the Realm Act for publishing articles "calculated and likely to cause sedition among His Majesty's forces, in the Navy, and among the civilian population," McKay had his rooms searched. He is likely to have been the author of "The Yellow Peril and the Dockers" attributed to "Leon Lopez", which was one of the articles cited by the government in its case against Workers' Dreadnought.

n 1928, McKay published his most famous novel, Home to Harlem, which won the Harmon Gold Award for Literature. The novel, which depicted street life in Harlem, would have a major impact on black intellectuals in the Caribbean, West Africa, and Europe.

McKay's novel gained a substantial readership, especially with people who wanted to know more about the intense, and sometimes shocking, details of Harlem nightlife. His novel was an attempt to capture the energetic and intense spirit of the "uprooted black vagabonds." Home to Harlem was a work in which McKay looked among the common people for a distinctive black identity.

Despite this, the book drew fire from one of McKay's contemporaries, W. E. B. Du Bois. To Du Bois, the novel's frank depictions of sexuality and the nightlife in Harlem only appealed to the "prurient demand[s]" of white readers and publishers looking for portrayals of black "licentiousness." As Du Bois said, "Home to Harlem ... for the most part nauseates me, and after the dirtier parts of its filth I feel distinctly like taking a bath." Modern critics now dismiss this criticism from Du Bois, who was more concerned with using art as propaganda in the struggle for African-American political liberation than in the value of art to showcase the truth about the lives of black people.

McKay's other novels were Banjo (1929), and Banana Bottom (1933). Banjo was noted in part for its portrayal of how the French treated people from its sub-Saharan African colonies, as the novel centers on black seamen in Marseilles. Aimé Césaire stated that in Banjo, blacks were described truthfully and without "inhibition or prejudice". Banana Bottom was McKay's third novel. The book is said to follow a principal theme of a black individual in search of establishing a cultural identity in a white society. The book discusses underlying racial and cultural tensions.

McKay also authored a collection of short stories, Gingertown (1932), two autobiographical books, A Long Way from Home (1937) and My Green Hills of Jamaica (published posthumously in 1979), and a non-fiction, socio-historical treatise entitled Harlem: Negro Metropolis (1940). His collection Selected Poems (1953) was published posthumously and included a Foreword by John Dewey.

McKay became an American citizen in 1940.

Becoming disillusioned with communism, McKay embraced the social teachings of the Roman Catholic Church, to which he converted in 1944. He died from a heart attack in Chicago at the age of 58 and is buried at Calvary Cemetery (Queens, New York).