Judith Evelyn (born Evelyn Morris; March 20, 1909 – May 7, 1967) was an American-born Canadian stage and film actress who appeared in around 50 films and television series.

Evelyn was born Evelyn Morris in 1909 (later shaving four years off of her age) in Seneca, South Dakota, United States and raised in Winnipeg, Manitoba. Her step-father was a successful stage actor. She attended the University of Manitoba, where she was active in drama, and she developed her acting skills at Hart House, University of Toronto.

Evelyn worked on radio both for the British Broadcasting Corporation and for the Canadian Broadcasting Corporation. Her early stage experience included being a member of a Canadian Chautauqua unit in 1932. The next year, she performed with the Pasadena Community Playhouse in California.

Evelyn appeared on Broadway in the following plays:

All four of the plays were made into films, but Evelyn did not appear in any of them. She did appear in other films, including the role as Miss Lonelyhearts, the lonely alcoholic in Alfred Hitchcock's Rear Window. In 1956, Evelyn played the role of Nancy Lynnton in George Stevens' Giant. She had a brief performance as Queen Mother Taia in Michael Curtiz's The Egyptian and was featured with Vincent Price in The Tingler (1959), her last film role. On television, among other roles, she played Clara Keller in the 1958 episode "Man in the Moon" of the docudrama Behind Closed Doors and appeared in two episodes of the Western series Tales of Wells Fargo. Her last credited role was as Mrs. Bullock in the episode "Cry a Little for Mary Too" of The Eleventh Hour (1962).

In 1942, Evelyn won the Distinguished Performance Award from The Drama League for her performance in Angel Street, an award that is "bestowed each season on a single performer from over sixty nominated performances from Broadway and Off-Broadway."

On September 3, 1939, Evelyn and her then-fiancé, Canadian radio producer Andrew Allan (the two never married), survived the sinking of the Anchor-Donaldson liner SS Athenia. The Athenia was the first British passenger liner to be torpedoed and sunk by a German submarine in World War II. Mr. Allan's elderly father died in the aftermath of the disaster, when the lifeboat the three of them were in was accidentally sunk by a rescue ship.

Evelyn died from pancreatic cancer in New York City on May 7, 1967, aged 58. She is interred at the Kensico Cemetery in Valhalla, New York.