| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Taberlomina Cross Roads | city | Loch Garman | Ireland | 52.4863889 | -6.3369444 | 209 | 3820 |
| Taghadoe Cross Roads | city | Cill Dara | Ireland | 53.3513889 | -6.6 | 259 | 6740 |
| Taghmon | city | Loch Garman | Ireland | 52.3216667 | -6.6475 | 239 | 4054 |
| Taghsheenod | city | | Ireland | 53.6166667 | -7.7166667 | 282 | 2542 |
| Taghshinny | city | | Ireland | 53.6 | -7.7166667 | 239 | 2542 |
| Tagoat | city | Loch Garman | Ireland | 52.2427778 | -6.3802778 | 3 | 3114 |
| Tahilla | city | Ciarrai | Ireland | 51.8372222 | -9.8363889 | 9 | 2023 |
| Tailor's Cross Roads | city | County Carlow | Ireland | 52.7058333 | -6.8077778 | 331 | 4231 |
| Tailorʼs Cross Roads | city | County Carlow | Ireland | 52.7058333 | -6.8077778 | 331 | 4231 |
| Tairbeart | city | Ciarrai | Ireland | 52.5727778 | -9.3752778 | 9 | 2650 |
| Talbot's Bridge | city | Ciarrai | Ireland | 52.3183333 | -9.3825 | 492 | 2433 |
| Talbotstown | city | Cill Mhantain | Ireland | 52.9272222 | -6.6336111 | 551 | 4507 |
| Talbotʼs Bridge | city | Ciarrai | Ireland | 52.3183333 | -9.3825 | 492 | 2433 |
| Tallagh | city | Maigh Eo | Ireland | 54.2388889 | -9.9986111 | 22 | 1129 |
| Tallaght | city | Baile Atha Cliath | Ireland | 53.2877778 | -6.3411111 | 298 | 100549 |
| Tallanstown | city | County Louth | Ireland | 53.9227778 | -6.5463889 | 118 | 9306 |
| Tallow | city | Port Lairge | Ireland | 52.0927778 | -8.080556 | 239 | 4996 |
| Tallowbridge | city | Port Lairge | Ireland | 52.1041667 | -8.027778 | 111 | 4861 |
| Tallycreen Bridge | city | An Clar | Ireland | 52.6736111 | -9.3094444 | 65 | 2520 |
| Tallyho | city | Cill Mhantain | Ireland | 52.8136111 | -6.3622222 | 675 | 4428 |
| Tallyvogy | city | County Monaghan | Ireland | 54.2813889 | -7.011111 | 308 | 3476 |
| Tamhlacht | city | Baile Atha Cliath | Ireland | 53.2877778 | -6.3411111 | 298 | 100549 |
| Tamlat | city | County Monaghan | Ireland | 54.27 | -6.8719444 | 216 | 4861 |
| Tamney | city | County Donegal | Ireland | 55.2 | -7.6833333 | 167 | 1827 |
| Tang | city | | Ireland | 53.5333333 | -7.7833333 | 219 | 2923 |
| Tangaveane | city | County Donegal | Ireland | 54.7927778 | -8.1716667 | 695 | 2315 |
| Tankardsgarden | city | Cill Dara | Ireland | 53.2108333 | -6.8158333 | 393 | 7161 |
| Tankardstown Bridge | city | Laois | Ireland | 52.9380556 | -6.9575 | 180 | 5728 |
| Tankardstown Cross Roads | city | County Carlow | Ireland | 52.8244444 | -6.6886111 | 347 | 4334 |
| Tannersrath | city | Tiobraid Arann | Ireland | 52.3780556 | -7.6880556 | 134 | 3097 |
| Tanregee | city | Maigh Eo | Ireland | 53.9491667 | -9.8652778 | 344 | 1291 |
| Tanyara Bridge | city | Corcaigh | Ireland | 51.7925 | -8.8377778 | 498 | 5223 |
| Tap | city | Sligeach | Ireland | 54.1233333 | -8.2477778 | 810 | 2338 |
| Tar Bridge | city | Tiobraid Arann | Ireland | 52.2777778 | -7.8341667 | 252 | 3080 |
| Tara | city | County Offaly | Ireland | 53.3266667 | -7.5541667 | 242 | 2711 |
| Tarbert | city | Ciarrai | Ireland | 52.5727778 | -9.3752778 | 9 | 2650 |
| Tarloughmore | city | Ros Comain | Ireland | 53.3963889 | -8.1469444 | 278 | 1869 |
| Tarmon | city | Ciarrai | Ireland | 52.5380556 | -9.3788889 | 259 | 2532 |
| Tarmon | city | County Leitrim | Ireland | 54.1255556 | -8.0847222 | 190 | 1474 |
| Tarrant's Cross Roads | city | Corcaigh | Ireland | 52.2858333 | -8.8738889 | 488 | 5172 |
| Tarrantʼs Cross Roads | city | Corcaigh | Ireland | 52.2858333 | -8.8738889 | 488 | 5172 |
| Tarrea | city | Gaillimh | Ireland | 53.1644444 | -8.9313889 | 6 | 2396 |
| Tattyboy | city | County Monaghan | Ireland | 54.0230556 | -6.6211111 | 255 | 6161 |
| Taughboy | city | County Donegal | Ireland | 54.7536111 | -7.8344444 | 498 | 2429 |
| Taur | city | | Ireland | 52.2333333 | -9.1166667 | 895 | 5174 |
| Tawlaght | city | Ciarrai | Ireland | 52.2872222 | -9.8577778 | 0 | 1077 |
| Tawnagh | city | Maigh Eo | Ireland | 54.052778 | -9.2858333 | 78 | 1797 |
| Tawnagh Beg | city | Maigh Eo | Ireland | 53.9422222 | -9.1330556 | 88 | 1807 |
| Tawnaghbeg | city | Maigh Eo | Ireland | 53.9855556 | -8.6138889 | 344 | 2129 |
| Tawnaghmore | city | Maigh Eo | Ireland | 54.1916667 | -9.2036111 | 13 | 1278 |
| Tawnaghmore | city | Maigh Eo | Ireland | 54.047222 | -9.1816667 | 91 | 1797 |
| Tawnalghta | city | Sligeach | Ireland | 54.1788889 | -8.9733333 | 374 | 2536 |
| Tawnavoultry | city | Sligeach | Ireland | 54.0925 | -8.6747222 | 249 | 2674 |
| Tawny | city | County Donegal | Ireland | 54.6244444 | -8.6008333 | 62 | 804 |
| Tawny | city | County Donegal | Ireland | 55.2 | -7.6833333 | 167 | 1827 |
| Tawnyany | city | Sligeach | Ireland | 54.0869444 | -8.9397222 | 757 | 2421 |
| Tawnyinah | city | | Ireland | 53.9 | -8.7666667 | 429 | 1806 |
| Tawnykinaff | city | Maigh Eo | Ireland | 53.9333333 | -9.2669444 | 252 | 1807 |
| Tawnylaheen | city | Maigh Eo | Ireland | 53.8875 | -9.2697222 | 141 | 1806 |
| Tawnylea | city | County Leitrim | Ireland | 54.2063889 | -8.1555556 | 216 | 1394 |
| Taylor's Cross | city | County Offaly | Ireland | 53.1616667 | -7.9513889 | 239 | 2691 |
| Taylorstown Bridge | city | Loch Garman | Ireland | 52.275 | -6.7916667 | 16 | 3691 |
| Taylorstown Cross Roads | city | Loch Garman | Ireland | 52.2666667 | -6.7994444 | 16 | 3691 |
| Taylorʼs Cross | city | County Offaly | Ireland | 53.1616667 | -7.9513889 | 239 | 2691 |
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