Jill St John (born August 19, 1940) is a film and television actress. Born as Jill Arlyn Oppenheim, St John’s major film roles occurred during the 1960s and early 1970s, including Barbara Tuttle in Jerry Lewis’ Who’s Minding the Store? and a turn as Tiffany Case in the 1971 James Bond film, Diamonds Are Forever.

Jill St John as Tiffany Case.

To get away from her bikini clad image, St John starred in the 1982 film, The Concrete Jungle, where she played Warden Fletcher at an all-girl prison.

St John continues to act. Her roles in the 1990s and 2000s have primarily been for television sitcoms and made-for-TV films.