Myra Tanner Weiss (May 17, 1917 – September 13, 1997) was an American Communist following Trotskyism, and a three time U.S. Vice Presidential candidate of the Socialist Workers Party (SWP). Myra Tanner was recruited to the American Trotskyist movement in 1935, while at the University of Utah in Salt Lake City. In 1942, she married Murry Weiss, also a member of the SWP. They were living and working for the Party in Los Angeles, and Myra Tanner ran for the mayor of Los Angeles in 1945 and 1949.