Shulasmith Firestone was a Canadian-American radical feminist, writer and activist.

Firestone was a founding member of the radical-feminist groups: New York Radical Women, Redstockings, and New York Radical Feminists. With these groups, Firesmith was a part of many feminist protests and political actions, She disrupted abortion legislation meetings and organised the first abortion speak out, protested against sexual harassment and protested at a Miss America contest to raise awareness of how sexist it was to judge women on their appearance alone.

Firesmith is best known for her book, The Dialectic of Sex: The Case for Feminist Revolution, an influential feminist text which is still taught as part of many women’s studies courses.