Illeana Hesselberg (Quincy, Massachusetts, 25 de juliol de 1961), coneguda professionalment com Illeana Douglas, és una actriu i cineasta nord-americana.

Illeana Hesselberg, most commonly known as Illeana Douglas, (born July 25, 1961) is an American actress, director, screenwriter, and producer. Douglas has had a long-ranging diverse career as a character actor with a specialty in comedy. She is a granddaughter of Hollywood Golden Age screen star Melvyn Douglas.