| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Tap | city | Sligo | Ireland | 54.12 | -8.25 | 830 | 677 |
| Tawnalghta | city | Sligo | Ireland | 54.18 | -8.97 | 374 | 812 |
| Tawnamaddoo | city | Sligo | Ireland | 54.20 | -8.95 | 301 | 890 |
| Tawnanaddoo | city | Sligo | Ireland | 54.20 | -8.95 | 301 | 890 |
| Tawnaneilleen | city | Sligo | Ireland | 54.13 | -8.89 | 830 | 257 |
| Tawnavoultry | city | Sligo | Ireland | 54.09 | -8.67 | 249 | 1000 |
| Tawnyany | city | Sligo | Ireland | 54.09 | -8.94 | 830 | 619 |
| Templeboy | city | Sligo | Ireland | 54.25 | -8.81 | 239 | 721 |
| Tobar an Choire | city | Sligo | Ireland | 54.05 | -8.73 | 301 | 2389 |
| Toberawnaun | city | Sligo | Ireland | 54.26 | -8.72 | 108 | 683 |
| Tobercurry | city | Sligo | Ireland | 54.05 | -8.73 | 301 | 2389 |
| Toberscanavan | city | Sligo | Ireland | 54.17 | -8.49 | 216 | 3268 |
| Toberscardan | city | Sligo | Ireland | 54.08 | -8.70 | 830 | 1814 |
| Toorlestraun | city | Sligo | Ireland | 54.04 | -8.84 | 190 | 979 |
| Tuar Loistreáin | city | Sligo | Ireland | 54.04 | -8.84 | 190 | 979 |
| Tubbercurry | city | Sligo | Ireland | 54.05 | -8.73 | 301 | 2389 |
| Tulaigh Uí Fhloinn nó Baile Uí Fhionnáin | city | Sligo | Ireland | 54.20 | -9.02 | 229 | 1539 |
| Tulaigh na gClog | city | Sligo | Ireland | 54.05 | -8.79 | 226 | 1521 |
| Tullanaglug | city | Sligo | Ireland | 54.05 | -8.79 | 226 | 1521 |
| Tullylin | city | Sligo | Ireland | 54.20 | -9.02 | 229 | 1539 |
| Tunnagh | city | Sligo | Ireland | 54.03 | -8.50 | 249 | 1428 |