Nadja Tiller (born March 16, 1929 in Vienna, Austria) is an Austrian actress. She was one of the most popular Austrian actresses of international films of the 1950s and 1960s.She won the Miss Austria competition in 1949, a national beauty pageant for unmarried women in Austria. She had her major film debut in 1952 in Märchen vom Glück (Good Luck Fairytale).In 1955, she acted opposite O.W. Fischer in the film Ich suche Dich, based on a play by A.J. Cronin. Her international breakthrough role was that of Rosemarie Nitribitt in the 1958 German movie Rosemary (1958).