Jessica Valenti (; born November 1, 1978) is an American feminist writer. She was the co-founder of the blog Feministing, which she wrote for from 2004 to 2011. Valenti is the author of five books: Full Frontal Feminism (2007), He's a Stud, She's a Slut (2008), The Purity Myth (2009), Why Have Kids? (2012), and Sex Object: A Memoir (2016). She also co-edited the books Yes Means Yes: Visions of Female Sexual Power and A World Without Rape (2008), and Believe Me: How Trusting Women Can Change the World (2020). Between 2014 and 2018, Valenti was a columnist for The Guardian. She is currently a columnist for Medium.