Susan Cayleff (born 1954) is an American academic and emeritus professor at San Diego State University, having taught there from 1987 to 2020. She was one the inaugural members of the National Women's Studies Association Lesbian Caucus and served on the organization's Coordinating Council between 1977 and 1979. She founded the Women's History Seminar Series at the University of Texas Medical Branch, in Galveston, Texas; the Graduate Women's Scholars of Southern California in 1989; and was a co-founder of the SafeZones program at San Diego State University.