Ilka Chase was an American actress and novelist.
Born in New York City and educated at convent and boarding schools in the United States, England, and France, she was the only child of Edna Woolman Chase, the editor in chief of Vogue magazine, and her first husband, Francis Dane Chase.
Chase made her society debut in 1923 and her Broadway debut a year later, in The Red Falcon. Her stage appearances included roles in Days Without End, Forsaking All Others, While Parents Sleep, On to Fortune, Tampico, Co-Respondent Unknown, Revenge With Music, Keep Off the Grass and In Bed We Cry, which was an adaptation of her novel of the same name. She was in the first Broadway cast of Clare Boothe Luce's play The Women and subsequently appeared in Neil Simon's Broadway hit Barefoot in the Park.
Her films included Fast and Loose, Once a Sinner, The Animal Kingdom, The Big Knife, and Now, Voyager. For several years, she was host of a radio program, Luncheon at the Waldorf.