- Templehouse
- Templehouse Demesne
- Tieveboy
- Tiraree
- Toberanania
- Toberawnaun
- Toberbride
- Tobercurry
- Tobernaglashy
- Tobernaveen
- Toberpatrick
- Toberscanavan
- Toberscardan
- Tobertelly
- Tonaforte
- Tonaponra
- Toomour
- Toorard
- Toorlestraun
- Townaghbrack
- Traware Bay
- Treanmacmurtagh
- Treanmore
- Treanmore
- Treanscrabbagh
- Trimilawn
- Tullaghan
- Tullanaglug
- Tully
- Tully