Judy Grahn (born July 28, 1940) is an American poet and author. Inspired by her experiences of disenfranchisement as a butch lesbian, she became a feminist poet, highly-regarded in underground circles before achieving public fame. A major influence in her work is Metaformic Theory, tracing the roots of modern culture back to ancient menstrual rites, though she does not regard the philosophy as exclusively feminist. Grahn teaches women's mythology and ancient literature at the California Institute for Integral Studies and other institutions.