Kitt is a surname of English and German origins. Notable people with the surname include:
A. J. Kitt (born 1968), American alpine ski racer
Camille and Kennerly Kitt (born 1989), identical twin American actresses and harpists
Captain Kitt (active c. 1820), Irish Whiteboys captain
David Kitt (born 1975), Irish musician
Eartha Kitt (1927–2008), American actress, singer, and cabaret star
Michael F. Kitt (1914–1974), Irish Fianna Fáil politician and long-serving Teachta Dála
Michael P. Kitt (born 1950), Irish Fianna Fáil party politician
Sandra Kitt, African-American author of contemporary romance novels
Theo Kitt (1912–?), German bobsledder
Tom Kitt (politician) (born 1952), Irish Fianna Fáil politician and Teachta Dála
Tom Kitt (musician) (born 1974), American composer and conductor