Gregg Park is a historic public park and national historic district located at Vincennes, Knox County, Indiana. The park was dedicated in 1931, and developed by the Works Progress Administration (WPA) in 1938-1939. The WPA constructed a limestone shelterhouse, concrete Moderne style bandshell / grandstand, the brick main entrance gate, and horseshoe pits. The park is named for Vincennes mayor Claude E. Gregg (1885-1931) and is a popular spot for swimming. It was added to the National Register of Historic Places in 2013.