Karl Stevens (born November 21, 1978 in Concord, Massachusetts) is a graphic novelist and painter. His first book, Guilty, was published in 2005 with a grant from the Xeric Foundation. He is also the author of The Lodger (2010), The Winner (2018), and Penny: A Graphic Memoir (2021). His comic strips have appeared in the alternative newsweekly the Boston Phoenix (2005-2012), The Village Voice (2016-2017), and The New Yorker magazine (2018-present).