Kathleen Key (1 April 1903 – 22 Desember 1954) was 'n Amerikaanse aktrise. Sy was bekend vir haar rolle in die rolprente The Sea Hawk (1924), Ben-Hur: A Tale of the Christ (1925), The Flaming Frontier (1926), en The Desert's Toll (1926).
- 1920: The Rookie's Return
- 1920: The Jackeroo of Coolabong
- 1921: The Fighting Breed
- 1922: The Beautiful and Damned
- 1922: Bells of San Juan
- 1922: Where's My Wandering Boy Tonight?
- 1923: Hell's Hole
- 1923: The Man from Brodney's
- 1923: North of Hudson Bay
- 1923: The Rendezvous
- 1923: Reno
- 1924: The Sea Hawk
- 1924: The Trouble Shooter
- 1925: Ben-Hur: A Tale of the Christ
- 1925: A Lover's Oath
- 1926: The Flaming Frontier
- 1926: The Desert's Toll
- 1926: Under Western Skies
- 1927: Hey! Hey! Cowboy
- 1927: Irish Hearts
- 1928: Golf Widows
- 1929: The Phantom of the North
- 1930: Sweeping Against the Winds
