Roy Lake State Park

Roy Lake State Park
Location of Roy Lake State Park in South Dakota
LocationMarshall, South Dakota, United States
Coordinates45°42′34.869″N 97°26′55.6902″W / 45.70968583°N 97.448802833°W / 45.70968583; -97.448802833
Governing bodySouth Dakota Game, Fish and Parks
WebsiteRoy Lake State Park

Roy Lake State Park is a South Dakota state park in Marshall County, South Dakota in the United States. The park is divided in two sections on Roy Lake, and is open for year-round recreation including camping, beaches, swimming, fishing, hiking and boating. The Roy Lake Resort & Lodge is located in the park. Boat ramps are available and visitors can rent boats from the resort.

There are 100 campsites on two campgrounds and 3 cabins.

The name of Roy Lake recalls an incident when a dog named Roy drowned at the lake.