Lake Hefner
General data
- Name: Lake Hefner
- Water system: Mississippi River
- Water type: Artificial lake
- Progression: Bluff Creek -> Deer Creek (Cimarron River tributary) -> Cimarron River (Arkansas River tributary) -> Arkansas River -> Mississippi River -> Gulf of Mexico -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
Lake Hefner is a reservoir in northwestern Oklahoma City, Oklahoma. It was built in the 1940s to expand the water supply for the city of Oklahoma City, It is named after Robert A. Hefner, who served as mayor of Oklahoma City from April 11, 1939, to April 8, 1947, but was originally named the "Bluff Creek Reservoir" . The capacity of the lake is 75,000 acre-feet. Lake Hefner covers 10 km2 and averages 8.8 m deep. The lake's outflow goes into Bluff Creek which travels north to meet up with Deer Creek, which then flows into the Cimarron River near Guthrie.
Hefner is a popular recreational fishing spot for Oklahoma City residents, and is populated with a variety of gamefish species including largemouth & smallmouth bass, channel catfish, walleye, bluegill, black crappie, as well as white bass and hybrid striped bass.