Mistusinne is a resort village in Maple Bush Rural Municipality No. 224, Saskatchewan, Canada. The population was 56 at the 2006 Census. The village's name is derived from the Plains Cree word mistasiniy (meaning "big stone") which refers to a massive stone that resembled a sleeping bison that once rested in the Qu'Appelle Valley before Lake Diefenbaker was built. Douglas Provincial Park extends from the community to the Qu'Appelle River Dam and is 8 km south of the village of Elbow on highway 19. The community serves as a summer retreat that contains many cabins and a golf course, with a view of Lake Diefenbaker.