Patti Astor (born ca. 1950) is an American performer who was a key actress in New York City underground films of the 1970s, and the East Village art scene of the 1980s, and involved in the early popularizing of hip hop. She co-founded the instrumental contemporary art gallery, Fun Gallery.

Patti Astor grew up in Cincinnati, Ohio where she was a charter member of the Cincinnati Civic Ballet. Her adventurous spirit however took her to New York City at the age of eighteen (in 1968) to Barnard College but she soon dropped out to take a leadership role in the anti-Vietnam war group SDS (Students for a Democratic Society). She spent two and a half years as a young revolutionary. At the end of that war she traveled the United States and Europe with her dance act, A Diamond As Big As The Ritz.