Katherine DeMille, Canadian-American actress (b. 1911)
Katherine Lester DeMille (born Katherine Paula Lester; June 29, 1911 – April 27, 1995) was a Canadian-born American actress who played 25 credited film roles from the mid-1930s to the late 1940s.

The adopted daughter of director Cecil B. DeMille, she was considered Hollywood royalty and was noted for her dark beauty. Her first credited role was featured in Viva Villa! (1934). She signed a contract with Paramount Pictures and portrayed Princess Alice of France in her father's epic The Crusades (1935) and also starred in The Sky Parade (1936).

DeMille continued her career at 20th Century Fox and other studios until 1941, when she retired to dedicate her time to her family. She returned to films with roles in Black Gold and Unconquered (both 1947) and starred in her final film, The Judge, in 1949. In his autobiography, her father wrote that she "has carried the name deMille on for another generation in motion pictures as a talented actress."