Tenkiller Ferry Lake
General data
- Name: Tenkiller Ferry Lake
- Water system: Mississippi River
- Water type: Artificial lake
- Progression: Illinois River (Arkansas–Oklahoma) -> Arkansas River -> Mississippi River -> Gulf of Mexico -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
Tenkiller Ferry Lake, or more simply, Lake Tenkiller, is a reservoir in eastern Oklahoma formed by the damming of the Illinois River. The lake and dam were named for the Tenkiller family, prominent Cherokees who owned the land and ferry that were bought for the project. The 6th largest lake in Oklahoma, based on water capacity, it is one of Oklahoma's 'Big Three' lakes, along with Lake Eufaula and Grand Lake o' the Cherokees. The lake covers 52 km2 and has a shoreline of over 210 km in the Cookson Hills of the Ozark Mountains of Cherokee and Sequoyah counties.