- Tenmile
- Tenmile Island
- Tensas
- Tensas Bluff
- Tensas Bluff Landing
- Tepetate
- Terra Haute
- Terrills
- Terry
- Terrytown
- Texas
- Thannas Island
- The Highlands
- The Myrtles
- The Parks
- The Rock
- The Shire
- The Woods
- Theall
- Theriot
- Theriot
- Thibodaux
- Thibodaux Junction
- Thibodeaux Mobile Home Park
- Thibodeaux Mobile Home Park
- Thibodeaux Mobile Home Park
- Third Island
- Thirteen Points Landing
- Thomas
- Thomasin Lumps