Lake Marion or Marion Lake may refer to:
Canada Marion Lake (Alberta), a street in Botha, Alberta
United States Marion Lake (Arkansas), a lake in Crittenden County Marion County Lake, a lake in Marion County, Kansas Marion Reservoir, a reservoir in Marion County, Kansas Marion Lake (Dakota County, Minnesota) Lake Marion (McLeod County, Minnesota) Marion Lake (Montana), a lake in Flathead County Marion Lake (Oregon), a lake in Linn County Lake Marion (South Carolina), a reservoir formed by an impoundment on the Santee River Marion Lake (Teton County, Wyoming), a lake