|Location||Rogers / Nowata counties, Oklahoma, United States|
|Primary inflows||Verdigris River|
|Primary outflows||Verdigris River|
|Basin countries||United States|
|Surface area||29,000 acres (120 km2)|
|Water volume||522,210 acre feet (644,140,000 m3)|
|Shore length1||209 mi (336 km)|
|Surface elevation||607 ft (185 m)|
|Settlements||Oologah, Nowata, Claremore|
|1 Shore length is not a well-defined measure.|
Lake Oologah is a reservoir in northeastern Oklahoma. It is located near the towns of Oologah, Nowata, and Claremore. The lake has a surface of 29,500 acres (119 km2) of water and 209 miles (336 km) of shoreline with 11 lake-side parks. The water storage capacity is rated as 552,210 acre feet (681,140,000 m3).  The lake is formed along the Verdigris River, and is a source of water for the Tulsa Metropolitan Area. The purpose of the dam and lake is flood control, water supply, navigation, recreation, and fish and wildlife.
The dam and lake were built by the U.S. Army Corps of Engineers, who still administer it. The project was authorized by the Flood Control Act of 1938 and construction began in 1950. In 1951, construction was halted and resumed in 1955. In 1963, the majority of the project was complete and all facilities were in 1974. In 1976, the City of Tulsa built a pipeline connecting Oologah to the Lynn Lake Reservoir in Tulsa. Raw water supplied by this system is treated by the A. B. Jewell Water Treatment Plant, which was built in 1974 with a design capacity of 90,000,000 US gallons per day (340,000 m3/d). The Jewell plant capacity has since been expanded to 120,000,000 US gallons per day (450,000 m3/d).
The Oologah Dam is located at embankment type. Its maximum height is 137 ft (42 m) above the river bed and the embankment is 4,000 ft (1,219 m) long. The dam's spillway is located 2 mi (3 km) to the east and is composed of seven radial gates.and is an earth-fill
Recreation opportunities include a swimming beach, mountain biking, marina, RV and tent camping, picnic tables and a playground. On the east side of the lake, the Will Rogers Country Centennial Trail winds around the shore from the Spillway to Blue Creek Park totalling 18 miles.
- "Tulsa, Oklahoma". Oologah.com. Krantz Communications. 2007. Retrieved 2007-07-12.
- "Oologah Lake". U.S. Army Corps of Engineers. Retrieved 26 October 2011.
- City of Tulsa - Water Supply Lakes - Oologah.
- City of Tulsa, Retrieved January 4, 2011. 
- City of Tulsa Online. Tulsa Water.
- http://www.travelok.com/listings/view.profile/id.5578 accessed on 6-25-2010
- Oologah Lake Official U.S. Army Corps of Engineers Site
- Oologah Lake information, photos and video on TravelOK.com Official travel and tourism website for the State of Oklahoma
- Oklahoma Digital Maps: Digital Collections of Oklahoma and Indian Territory