| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Tallycreen Bridge | city | An Clar | Ireland | 52.6736111 | -9.3094444 | 65 | 2520 |
| The Hand Cross Roads | city | An Clar | Ireland | 52.8205556 | -9.2638889 | 498 | 2511 |
| Tomgraney | city | An Clar | Ireland | 52.8972222 | -8.5386111 | 246 | 2348 |
| Tooclae | city | An Clar | Ireland | 53.0130556 | -9.3555556 | 213 | 2033 |
| Toomaghera | city | An Clar | Ireland | 53.0472222 | -9.2419444 | 495 | 2493 |
| Tromra | city | An Clar | Ireland | 52.8066667 | -9.4655556 | 55 | 1020 |
| Trusklieve | city | An Clar | Ireland | 52.6277778 | -9.7644444 | 226 | 933 |
| Tuaim Greine | city | An Clar | Ireland | 52.8972222 | -8.5386111 | 246 | 2348 |
| Tuaim Gréine | city | An Clar | Ireland | 52.8972222 | -8.5386111 | 246 | 2348 |
| Tuamgraney | city | An Clar | Ireland | 52.8972222 | -8.5386111 | 246 | 2348 |
| Tulla | city | An Clar | Ireland | 53.0711111 | -8.9411111 | 177 | 2663 |
| Tulla | city | An Clar | Ireland | 52.8647222 | -8.7605556 | 498 | 2510 |
| Tullagh | city | An Clar | Ireland | 52.975 | -9.2083333 | 239 | 2500 |
| Tullig | city | An Clar | Ireland | 52.6147222 | -9.7761111 | 147 | 1259 |
| Tullycreen | city | An Clar | Ireland | 52.6838889 | -9.3558333 | 91 | 2520 |
| Tullycreen Lower | city | An Clar | Ireland | 52.6683333 | -9.3272222 | 55 | 2520 |
| Tullycreen Upper | city | An Clar | Ireland | 52.6838889 | -9.3558333 | 91 | 2520 |
| Tullycrine | city | An Clar | Ireland | 52.6838889 | -9.3558333 | 91 | 2520 |
| Tullygarvan | city | An Clar | Ireland | 52.9152778 | -9.3227778 | 249 | 2431 |
| Turlough | city | An Clar | Ireland | 53.0922222 | -9.0652778 | 216 | 2304 |
| Tyredagh Upper | city | An Clar | Ireland | 52.9091667 | -8.79 | 269 | 2507 |
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