Tennessee–Tombigbee Waterway (Tenn–Tom)
General data
- Name: Tennessee–Tombigbee Waterway (Tenn–Tom)
- Water system: Mobile River
- Water type: Canal
- Progression: Black Warrior River -> Tombigbee River -> Mobile River -> Mobile Bay -> Gulf of Mexico -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
The Tennessee–Tombigbee Waterway (popularly known as the Tenn-Tom) is a 234-mile (377 km) artificial U.S. waterway built in the 20th century from the Tennessee River to the junction of the Black Warrior-Tombigbee River system near Demopolis, Alabama.