Omar Khayyam (1048–1131) was a Persian poet, mathematician, philosopher and astronomer.

Omar Khayyam may also refer to:

• Omar Khayyam (1923 film), an American silent film
• Omar Khaiyyam, a 1946 Bollywood film
• Omar Khayyam (1957 film), an American historical adventure film
• The Omar Khayyam Show, Spike Milligan's 1963 remake of his series The Idiot Weekly

• Omar Khayyám, a 1906 choral work by Sir Granville Bantock

• Omar Khayyam (crater), a lunar crater
• Omar Khayyam Square, a city square in Nishapur, Iran

• Omar Khayyam (horse) (1914–1938), a British-born Thoroughbred racehorse
• Omar Khayam (protester) (born 1983), British protester who dressed as a suicide bomber

• Omar Kiam, nickname of American fashion designer Alexander Kiam (1894-1954)
• Kerry Wendell Thornley (1938–1998), co-founder of Discordianism, who wrote as Omar Khayyam Ravenhurst
• Omar the Tentmaker (film), a 1922 film directed by James Young and featuring Boris Karloff

This disambiguation page lists articles associated with the title Omar Khayyam.
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