- Tawnycoolawee
- Tawnyeeny
- Tawnyemon
- Tawnyinah
- Tawnyinah Lower
- Tawnyinah Middle
- Tawnykinaff
- Tawnylaheen
- Tawnylough
- Tawnynaboll
- Termoncarragh
- Terrybaun
- Terryduff
- The Neale
- The Triangle
- Tierna
- Tiraninny
- Tiraun
- Tober
- Tobernaveen
- Togher
- Tomboholla
- Tonacroaghaun
- Tonaderrew
- Tonamace
- Tonatanvally
- Toncroaghaun
- Tongree
- Tonmore
- Tonnagh