The Houston Shakespeare Festival (HSF) is a regional repertory theatre in Houston, Texas, United States. Each summer, the Houston Shakespeare Festival produces a season of two Shakespeare plays in repertory. Since its inception in 1975, HSF has entertained over a million theatergoers with free performances in Hermann Park's Miller Outdoor Theatre. The Houston Shakespeare Festival has since become one of the major events on Houston's summer entertainment calendar. HSF is a recognized Actors' Equity Association theatre.