Kilrain may refer to:

• Jake Kilrain (1859–1937), ring name of boxer John Joseph Killion
• Jake Kilrain (British boxer) (1914–1984), ring name of boxer Henry Owens
• Susan Kilrain (born 1961), American NASA astronaut

• Lee Kilrain, character in the 1947 film The Fabulous Texan
• Dave Kilrain, character in the 1952 film Apache Country
• Lt. Col. Kilrain, character in the 1953 film The Charge at Feather River
• Lieutenant Kilrain, character in the 1957 film The Midnight Story
• Sergeant Buster Kilrain, character in the 1974 novel The Killer Angels and the 1993 film Gettysburg that is based on it

• Kilrain, Thoroughbred horse, winner of the 1913 Wellington Cup
• Canon of Kilrain, canon in the Church of Ireland held by Thomas Gibson

This disambiguation page lists articles associated with the title Kilrain.
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