The Great River Shakespeare Festival (GRSF) is a professional equity theatre company in Winona, Minnesota, a Mississippi River town in the southeastern part of the state. It produces three simultaneous performances each summer, held at the Winona State University Performing Arts Center. Starting in 2004, it has run for 12 seasons with annual audiences of over 10,000. Its 2015 Season ran from June 24-August 3, and featured three mainstage plays and one apprentice/intern production.