Joseph Conrad (born Józef Teodor Konrad Korzeniowski; December 1857 Berdichev, Ukraine – 3 August 1924) was a Polish novelist who wrote in English, after settling in England.

Conrad is regarded as one of the great novelists in English, although he did not speak the language fluently until he was in his twenties (and then always with a marked Polish accent). He wrote stories and novels, predominantly with a nautical setting, that depict trials of the human spirit by the demands of duty and honour. Conrad was a master prose stylist who brought a distinctly non-English tragic sensibility into English literature. While some of his works have a strain of romanticism, he is viewed as a precursor of modernist literature. His narrative style and anti-heroic characters have influenced many authors.

Films have been adapted from or inspired by Conrad's Victory, Lord Jim, The Secret Agent, An Outcast of the Islands, The Rover, The Shadow Line, The Duel, Heart of Darkness, Nostromo, and Almayer's Folly.