Frank S. Hagney (March 20, 1884 – June 25, 1973) was an Australian actor. Born in Sydney in 1884, Hagney appeared in more than 350 Hollywood films between 1919 and 1966. Most of his film roles were small and uncredited. Because of his tall and strong appearance, Hagney often played officers or henchmens. He is perhaps best-known as Mr. Potter's wordless wheelchair pusher in Frank Capra's classic It's a Wonderful Life (1946). Frank Hagney was also a guest star on more than 70 television programs such as The Cisco Kid, The Adventures of Kit Carson, The Lone Ranger, The Rifleman, Perry Mason, and Daniel Boone.

He starred in The Fighting Marine (1926) with Jack Anthony, Joe Bonomo and Walter Miller; The Fighting Sap (1924) with Bob Fleming, Hazel Keener, Wilfred Lucas and Fred Thomson; The Ghost in the Garret (1921), Ghost Town Gold (1936), Go Get 'Em Hutch (1922) with Richard R. Neil; Ride Him Cowboy (1932) with Eddie Gribbon and Charles Sellon; Riders of the Dawn (1939), Valley of the Lawless (1936), and Vultures of the Sea (1928) with Joseph Bennett.

His 42 silent films included The Battler (1919), The Breed of the Border (1924), The Dangerous Coward (1924), Galloping Gallagher (1924), Lighting Romance (1924), The Mask of Lopez (1924), The Silent Stranger (1924), The Wild Bull's Lair (1925), Lone Hand Saunders (1926) and The Two-Gun Man (1926). His 54 sound western film included The Phantom of the West (1931), Fighting Caravans (1931), The Squaw Man (1931), The Golden West (1932), Honor of the Range (1934), Western Frontier, Heroes of the Range (1936), Billy the Kid, The Lone Rider Ambushed (1941), Blazing Frontier (1943) and The Wistful Widow of Wagon Gap (1947). His last two films were McLintock! (1963) and Come Blow Your Horn (1963).

Hagney was married to Edna Shephard. He died in Los Angeles in 1973. He is buried at Forest Lawn Memorial Park, Glendale.