Diana Love Webster (née Dill; formerly Douglas and Darrid; January 22, 1923 – July 3, 2015), known professionally as Diana Douglas, was a Bermudian-American actress who was married to actor Kirk Douglas from 1943 until their divorce in 1951. She was the mother of Michael and Joel Douglas.

Douglas began her career as an actress in 1942, and ultimately appeared in more than 50 films. Two of her best-known roles were Susan Rogers in The Indian Fighter (co-starring Kirk Douglas) and Peg in Planes, Trains and Automobiles. She was also known for her recurring role as Martha Evans in Days of Our Lives (1977–1979, 1982). In 2003, she appeared in It Runs in the Family with her ex-husband Kirk, her son Michael and her grandson Cameron. She retired from acting in 2008.