F.J. McLain State Park is a 443-acre (179 ha) public recreation area on the Keweenaw Peninsula in Houghton County, Michigan.

[3] The park's offshore sights include sunsets over Lake Superior and the art deco–style Keweenaw Waterway Upper Entrance Light.

[4][A] The park is named after Houghton County Commissioner Frederick J. McLain, an instrumental figure in securing land for the site in the 1930s.

[4][B] The park offers fishing, picnicking, hiking and cross-country skiing trails, camping, and cabins.[2].

While the majority of the shoreline is rocky, a stretch known as the Breakwaters near the Keweenaw Waterway at the park's southern end provides a sandy beach for swimming.