Steffi Duna (February 8, 1910 – April 22, 1992) was a Hungarian born film actress popular in American and British films during the 1930s.

Born Stephanie Berindey in Budapest, Hungary, Duna first attracted attention as a thirteen year old ballet dancer in Europe.

She made her film debut in The Indiscretions of Eve (1932) in the starring role (along with Jessica Tandy also making her debut). During the 1930s Duna played a variety of nationalities but, despite her European background, was often cast as fiery Latin femme fatales in films that made full use of her exotic and glamorous persona. The films in which she played lead roles such as Panama Lady (1939) with Lucille Ball, were popular but did not make her a major star. Her best remembered films are arguably some of those in which she played key supporting roles, such as Anthony Adverse (1936) and Waterloo Bridge (1940).

She retired in 1940, and died in Beverly Hills, California in 1992.