Nickajack Reservoir
General data
- Name: Nickajack Reservoir
- Water system: Tennessee River
- Water type: Artificial lake
- Progression: Tennessee River -> Ohio River -> Mississippi River -> Gulf of Mexico -> Atlantic Ocean -> Planet Earth
- Climates: Subtropical, Temperate
- Continents: North America
- Countries: United States of America
Nickajack Reservoir is a large man-made reservoir on the Tennessee River in southeastern Tennessee, created by Nickajack Dam, which is operated by the Tennessee Valley Authority (TVA). It’s downstream from Chattanooga and upstream from Harrison Bay / Chickamauga Dam.