Vivian Nathan (born Vivian Firko; October 26, 1916 – April 3, 2015) was an American actress. She was an original and founding member of the Actors Studio, which opened in 1947. She served on the Actors Studio's board of directors until 1999. She appeared in the original Broadway debut productions of "The Rose Tattoo" (1951) and "Camino Real" (1953). Her movie credits included "Klute" (1971).