Tuesday Weld (born Susan Ker Weld; August 27, 1943) is a retired American actress. She began acting as a child and progressed to mature roles in the late 1950s. She won a Golden Globe Award for Most Promising Female Newcomer in 1960. Over the following decade, she established a career playing dramatic roles in films.

Weld often portrayed impulsive and reckless women and was nominated for a Golden Globe for Play It as It Lays (1972), an Academy Award for Best Supporting Actress for Looking for Mr. Goodbar (1977), an Emmy Award for The Winter of Our Discontent (1983), and a BAFTA for Once Upon a Time in America (1984). After the 1980s her acting appearances became infrequent, and her last role to date was in 2001's Chelsea Walls.