Sandra Dale Dennis was an American actress. She made her film debut in the drama Splendor in the Grass (1961). For her performance in the comedy-drama film Who's Afraid of Virginia Woolf? (1966), she received the Academy Award for Best Supporting Actress.

Splendor in the Grass is a 1961 American period drama film produced and directed by Elia Kazan, from a screenplay written by William Inge. It stars Natalie Wood and Warren Beatty as two high school sweethearts, navigating feelings of sexual repression, love, and heartbreak. Pat Hingle, Audrey Christie, Barbara Loden, Zohra Lampert, and Joanna Roos are featured in supporting roles.