Sandra M. Gilbert (born December 27, 1936) is an American literary critic and poet who has published in the fields of feminist literary criticism, feminist theory, and psychoanalytic criticism. She is best known for her collaborative critical work with Susan Gubar, with whom she co-authored, among other works, The Madwoman in the Attic (1979). Madwoman in the Attic is widely recognized as a text central to second-wave feminism. She is Professor Emerita of English at the University of California, Davis.