Guaranteed Rate Field, formerly Comiskey Park and U.S. Cellular Field, is a baseball stadium located on the South Side of Chicago, Illinois, United States. It is the ballpark of Major League Baseball’s Chicago White Sox, one of the city's two MLB teams, and is owned by the state of Illinois through the Illinois Sports Facilities Authority. Completed at a cost of US$137 million, the park opened as Comiskey Park on April 18, 1991, taking its name from the former ballpark at which the White Sox had played since 1910.

A ballpark, or baseball park, is a type of sports venue where baseball is played. The playing field is divided into two field sections called the infield and the outfield. The infield is an area whose dimensions are rigidly defined in part based on the placement of bases, and the outfield is where dimensions can vary widely from ballpark to ballpark. A larger ballpark may also be called a baseball stadium because it shares characteristics of other stadiums.