Irene Marie Dunne (December 20, 1898 – September 4, 1990) was an American film actress and singer of the 1930s, 1940s and early 1950s. She was nominated five times for the Academy Award for Best Actress, for her performances in Cimarron (1931), Theodora Goes Wild (1936), The Awful Truth (1937), Love Affair (1939), and I Remember Mama (1948). In 1985, she was given Kennedy Center Honors for her services to the arts.

She was discovered by Hollywood while starring with the road company of Show Boat in 1929. She signed a contract with RKO and appeared in her first movie, Leathernecking (1930), a film version of the musical Present Arms. Already in her thirties when she made her first film, she would be in competition with younger actresses for roles, and found it advantageous to evade questions that would reveal her age. Her publicists encouraged the belief that she was born in 1901 or 1904, and the former is the date engraved on her tombstone.