- Teeranearagh
- Teeravane
- Teernaboul
- Teeromoyle
- Termons
- Terrnahila
- The Knight’s Bridge
- The Seven Hogs
- Tiduff
- Tiduff
- Tiershanaghan
- Tinnabally Cross Roads
- Toberalooreen
- Tobernamoodane
- Togherbane
- Tonevane Cross Roads
- Toor
- Tooreen
- Tooreen
- Tooreencahill
- Tooreengarriv
- Tooreens
- Tooreenyduneen
- Treangarra
- Trench Bridge
- Trippul
- Tulla Beg
- Tulla More
- Tullaghna
- Tullaha