Sinfest is a long-running daily American comic strip by Tatsuya Ishida. It originally appeared in the University of California, Los Angeles' Daily Bruin student newspaper between 1991 and 1994. Ishida relaunched the comic strip in 2000 by self-publishing it online as a webcomic. Sinfest has also been collected into five printed books; three were self-published by Ishida between 2002 and 2005 and two were published by Dark Horse Comics in 2009 and 2011.