Ruth Morley (November 19, 1925 – February 12, 1991) was an Austrian-born American costume designer, active from the late 1950s through 1991. She was nominated for Best Costumes-Black and White for her work on The Miracle Worker during the 35th Academy Awards. She is also well known for her work on Annie Hall.Ms. Morley's stage work began in 1951, with "Billy Bud." Other Broadway productions included "Death of a Salesman," starring Dustin Hoffman, as well as "A Thousand Clowns," "Toys in the Attic," "Inherit the Wind," "Take a Giant Step," and "The Good Soldier Schweik." In 1951 and 1952 she was costume director for the New York City Opera.