Wilson State Park is a public recreation area found on the south shore of 9000 acre Wilson Lake reservoir approximately 10 mi north of the city of Wilson in Russell County, Kansas, United States. Located at the reservoir's eastern end, the state park covers 945 acres divided into two areas by the reservoir's southeastern arm: the Hell Creek area on the west side and the Otoe area on the east side. The Hell Creek area hosts a marina. Both areas include hiking trails, swimming beaches, boat ramps, and camping facilities.