William "Bill" Dannelly Reservoir
General data
- Name: William "Bill" Dannelly Reservoir
- Water system: Mobile River
- Water type: Artificial lake
- Progression: Alabama River -> Mobile River -> Mobile Bay -> Gulf of Mexico -> Atlantic Ocean -> Planet Earth
- Climates: Subtropical
- Continents: North America
- Countries: United States of America
The William "Bill" Dannelly Reservoir is a reservoir created by Millers Ferry Lock and Dam on the Alabama River in Dallas County and Wilcox County in Alabama. It covers 70 km2 and has approximately 800 km of shoreline. It was named for William "Bill" Dannelly, a former Wilcox County probate judge credited with leading the modernization of the Alabama and Coosa Rivers.
The Dannelly Reservoir is notable as a regional fishing ground and recreational area. Fish species present include white crappie, striped bass, hybrid striped bass, blue catfish, and channel catfish.