| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Taberlomina Cross Roads | city | Loch Garman | Ireland | 52.49 | -6.34 | 209 | 1983 |
| Tacuanshane | city | Loch Garman | Ireland | 52.21 | -6.41 | 3 | 2085 |
| Taghmon | city | Loch Garman | Ireland | 52.32 | -6.65 | 239 | 2441 |
| Tagoat | city | Loch Garman | Ireland | 52.24 | -6.38 | 3 | 3929 |
| Taylorstown Bridge | city | Loch Garman | Ireland | 52.27 | -6.79 | 16 | 2378 |
| Taylorstown Cross Roads | city | Loch Garman | Ireland | 52.27 | -6.80 | 16 | 2403 |
| Teach Munna | city | Loch Garman | Ireland | 52.32 | -6.65 | 239 | 2441 |
| Tellarought | city | Loch Garman | Ireland | 52.33 | -6.89 | 223 | 1981 |
| Templeludigan | city | Loch Garman | Ireland | 52.47 | -6.87 | 413 | 1573 |
| Templescoby | city | Loch Garman | Ireland | 52.50 | -6.65 | 249 | 2938 |
| Templeshanbo | city | Loch Garman | Ireland | 52.58 | -6.71 | 501 | 1458 |
| Templetown | city | Loch Garman | Ireland | 52.18 | -6.89 | 3 | 1227 |
| Tenacre Cross Roads | city | Loch Garman | Ireland | 52.22 | -6.50 | 13 | 2673 |
| The Deeps | city | Loch Garman | Ireland | 52.38 | -6.56 | 144 | 2960 |
| The Harrow | city | Loch Garman | Ireland | 52.56 | -6.44 | 249 | 1909 |
| The Leap | city | Loch Garman | Ireland | 52.41 | -6.70 | 262 | 2154 |
| The Leap | city | Loch Garman | Ireland | 52.49 | -6.66 | 242 | 2195 |
| The Little Crosses | city | Loch Garman | Ireland | 52.59 | -6.24 | 9 | 2049 |
| Thistletown | city | Loch Garman | Ireland | 52.31 | -6.90 | 242 | 1857 |
| Tianarath Cross Roads | city | Loch Garman | Ireland | 52.30 | -6.80 | 111 | 2330 |
| Tilladavin | city | Loch Garman | Ireland | 52.19 | -6.51 | 0 | 1933 |
| Tincoon | city | Loch Garman | Ireland | 52.43 | -6.55 | 177 | 3616 |
| Tinkerstown Cross Roads | city | Loch Garman | Ireland | 52.59 | -6.54 | 206 | 2915 |
| Tinnacarrick Philip | city | Loch Garman | Ireland | 52.35 | -6.83 | 255 | 1828 |
| Tinnacree | city | Loch Garman | Ireland | 52.52 | -6.25 | 3 | 1145 |
| Tinnacross Cross Roads | city | Loch Garman | Ireland | 52.54 | -6.48 | 249 | 2945 |
| Tinnaglogh | city | Loch Garman | Ireland | 52.27 | -6.90 | 173 | 2327 |
| Tinnakilla | city | Loch Garman | Ireland | 52.40 | -6.58 | 164 | 2428 |
| Toberpatrick | city | Loch Garman | Ireland | 52.72 | -6.16 | 0 | 975 |
| Tomacurry | city | Loch Garman | Ireland | 52.55 | -6.56 | 180 | 7458 |
| Tombard | city | Loch Garman | Ireland | 52.61 | -6.60 | 190 | 2104 |
| Tombrack | city | Loch Garman | Ireland | 52.60 | -6.55 | 223 | 2389 |
| Tomcool Cross Roads | city | Loch Garman | Ireland | 52.35 | -6.61 | 187 | 2625 |
| Tomfarney | city | Loch Garman | Ireland | 52.44 | -6.74 | 298 | 2299 |
| Tomfarney Upper | city | Loch Garman | Ireland | 52.41 | -6.68 | 249 | 2148 |
| Tomgarrow | city | Loch Garman | Ireland | 52.39 | -6.74 | 226 | 2047 |
| Tomhaggard | city | Loch Garman | Ireland | 52.21 | -6.52 | 16 | 2761 |
| Tomnaboley | city | Loch Garman | Ireland | 52.55 | -6.41 | 249 | 1755 |
| Tomnahealy | city | Loch Garman | Ireland | 52.72 | -6.22 | 213 | 2244 |
| Tourincarly | city | Loch Garman | Ireland | 52.45 | -6.73 | 278 | 2235 |
| Tracystown East | city | Loch Garman | Ireland | 52.28 | -6.61 | 249 | 2621 |
| Tullabards | city | Loch Garman | Ireland | 52.22 | -6.53 | 36 | 3038 |
| Tullycanna | city | Loch Garman | Ireland | 52.27 | -6.67 | 108 | 2364 |
| Turkyle | city | Loch Garman | Ireland | 52.43 | -6.45 | 85 | 2573 |
| Turner's Cross Roads | city | Loch Garman | Ireland | 52.31 | -6.61 | 354 | 2660 |
| Turner’s Cross Roads | city | Loch Garman | Ireland | 52.31 | -6.61 | 354 | 2660 |
| Twelveacre Cross Roads | city | Loch Garman | Ireland | 52.23 | -6.40 | 3 | 3569 |