Frank Campeau (December 14, 1864 – November 5, 1943) was an American actor. He appeared in more than 90 films between 1911 and 1940 and made many appearances in films starring Douglas Fairbanks. On Broadway, Campeau appeared in Rio Grande (1916), Believe Me Xantippe (1913), The Ghost Breaker (1913), and The Virginian (1904). Campeau's screen debut came in the one-reel western film Kit Carson's Wooing. He was born in Detroit, Michigan, and died in the Motion Picture & Television Country House and Hospital in Woodland Hills, Los Angeles.