William Bacon Oliver Lake, also known as Oliver Lake or Lake Oliver, is a 1,000-acre reservoir on the Black Warrior River in Alabama. Created by the William Bacon Oliver Lock and Dam, it is the smallest in a series of reservoirs along the Black Warrior. The lake stretches for 9 miles and has a maximum depth of over 25 feet.

Access is available via a boat ramp in Northport and a fishing pier in Tuscaloosa, both located just below the dam. These facilities are managed by the U.S. Army Corps of Engineers. Additional recreational facilities within Tuscaloosa city limits are managed by the Tuscaloosa County Park and Recreation Authority.

The lake is popular for boating, fishing, and picnicking. Anglers can target bass, bluegill, and crappie. A lake record includes an 11-pound, 10-ounce largemouth bass. The lake maintains an angler recognition program for sport fish.

Water clarity is typically around 3 feet. The lake's elevation is 149 feet above sea level. Its location between Tuscaloosa and Northport makes it easily accessible for residents and visitors. Tuscaloosa, home to the University of Alabama, offers lodging options and has an airport.

Paddlers should be aware that the Mill Creek Boat Ramp, located just below the dam, is subject to flooding during high water events. All visitors are required to pay a use fee and must be prepared to show a pass. Long lines are common during peak season, holidays, and summer months.

The lake is part of the larger Black Warrior & Tombigbee Waterway system, which serves commercial navigation purposes in addition to recreation. Paddlers should exercise caution and be aware of potential commercial traffic on the waterway.