Julie Haydon, nascuda Donella Donaldson (Oak Park, Illinois, 10 de juny de 1910 - La Crosse, Wisconsin, 24 de desembre de 1994), va ser una actriu de cinema i televisió nord-americana. Es va retirar del cinema el 1937.

Julie Haydon (born Donella Donaldson, June 10, 1910 – December 24, 1994) was an American Broadway, film and television actress who received second billing as the female lead in the Ben Hecht–Charles MacArthur 1935 film vehicle for Noel Coward, The Scoundrel. After her Hollywood career ended in 1937, she turned to the theatre, originating the roles of Kitty Duval in The Time of Your Life (1939) and Laura Wingfield in The Glass Menagerie (1945).