| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Roachtown | city | An Mhi | Ireland | 53.6983333 | -7.0783333 | 416 | 3897 |
| Road | city | County Offaly | Ireland | 53.3522222 | -7.2016667 | 413 | 2696 |
| Roadford | city | An Clar | Ireland | 53.0227778 | -9.3683333 | 170 | 2033 |
| Roads | city | Ciarrai | Ireland | 52.0191667 | -10.1455556 | 1213 | 1204 |
| Roadstown | city | Sligeach | Ireland | 54.0547222 | -8.6163889 | 249 | 2576 |
| Roadstown | city | County Louth | Ireland | 53.8586111 | -6.2530556 | 0 | 4637 |
| Robert's Cross Roads | city | Port Lairge | Ireland | 52.0513889 | -7.6072222 | 239 | 3217 |
| Robertstown | city | Port Lairge | Ireland | 52.2430556 | -7.3822222 | 505 | 4691 |
| Robertstown | city | Cill Dara | Ireland | 53.2741667 | -6.8177778 | 311 | 7152 |
| Robertʼs Cross Roads | city | Port Lairge | Ireland | 52.0513889 | -7.6072222 | 239 | 3217 |
| Robinstown | city | An Mhi | Ireland | 53.5925 | -6.7286111 | 183 | 4169 |
| Rochestown | city | Corcaigh | Ireland | 51.87 | -8.3830556 | 278 | 5141 |
| Rochestown | city | Tiobraid Arann | Ireland | 52.3333333 | -7.8886111 | 196 | 2875 |
| Rochestown | city | Cill Chainnigh | Ireland | 52.3183333 | -7.033333 | 111 | 3641 |
| Rochestown | city | Loch Garman | Ireland | 52.2841667 | -6.7644444 | 45 | 3704 |
| Rochfortbridge | city | An Iarmhi | Ireland | 53.4141667 | -7.2961111 | 439 | 2974 |
| Rockbrook | city | Baile Atha Cliath | Ireland | 53.2611111 | -6.3002778 | 800 | 100201 |
| Rockchapel | city | | Ireland | 52.2833333 | -9.15 | 935 | 5187 |
| Rockcorry | city | County Monaghan | Ireland | 54.1166667 | -7.0166667 | 367 | 3200 |
| Rockenham | city | Corcaigh | Ireland | 51.8777778 | -8.3486111 | 62 | 5035 |
| Rockfield | city | Sligeach | Ireland | 54.1677778 | -8.6208333 | 246 | 2357 |
| Rockfield | city | | Ireland | 53.65 | -8.2833333 | 249 | 1849 |
| Rockfield | city | County Offaly | Ireland | 53.2066667 | -7.455 | 370 | 2726 |
| Rockfield | city | County Monaghan | Ireland | 54.1113889 | -7.2172222 | 298 | 3008 |
| Rockfield Bridge | city | Ciarrai | Ireland | 52.1036111 | -9.5136111 | 249 | 2426 |
| Rockhill | city | County Limerick | Ireland | 52.4169444 | -8.7141667 | 259 | 5479 |
| Rockhill | city | | Ireland | 54.0666667 | -8.15 | 505 | 1857 |
| Rockhill | city | County Donegal | Ireland | 54.5708333 | -8.1130556 | 485 | 2260 |
| Rocking Stone | city | County Donegal | Ireland | 55.1233333 | -8.1647222 | 68 | 1979 |
| Rockland | city | | Ireland | 53.7166667 | -7.3333333 | 288 | 3170 |
| Rockmills | city | Corcaigh | Ireland | 52.2219444 | -8.4136111 | 219 | 5175 |
| Rockstown | city | Cill Mhantain | Ireland | 52.9055556 | -6.2013889 | 498 | 4585 |
| Rocktown | city | County Leitrim | Ireland | 54.3269444 | -8.2744444 | 472 | 1377 |
| Rocktown | city | County Donegal | Ireland | 54.9144444 | -7.6111111 | 472 | 2310 |
| Rockview | city | Cill Chainnigh | Ireland | 52.4986111 | -7.0569444 | 246 | 3319 |
| Rod | city | County Offaly | Ireland | 53.3522222 | -7.2016667 | 413 | 2696 |
| Roddenagh | city | Cill Mhantain | Ireland | 52.8575 | -6.3663889 | 324 | 4583 |
| Rodena Bridge | city | Cill Mhantain | Ireland | 52.8333333 | -6.3333333 | 433 | 4425 |
| Rodus Bridge | city | Tiobraid Arann | Ireland | 52.4827778 | -8.3397222 | 324 | 4196 |
| Roeckrow | city | County Donegal | Ireland | 54.7052778 | -8.45 | 810 | 2234 |
| Roevehagh | city | Gaillimh | Ireland | 53.2172222 | -8.8361111 | 49 | 2835 |
| Rogans Cross Roads | city | County Louth | Ireland | 54.044444 | -6.1772222 | 3 | 6419 |
| Rogerstown Bridge | city | Cill Chainnigh | Ireland | 52.4905556 | -7.3222222 | 249 | 3319 |
| Roo | city | Gaillimh | Ireland | 53.07 | -8.8980556 | 157 | 2767 |
| Rookwood | city | | Ireland | 53.5666667 | -8.2833333 | 226 | 2044 |
| Roonah Quay | city | Maigh Eo | Ireland | 53.7605556 | -9.8961111 | 3 | 484 |
| Roonkeel | city | | Ireland | 53.6833333 | -9.9 | 219 | 1021 |
| Roosk | city | Corcaigh | Ireland | 51.6825 | -9.6519444 | 0 | 3091 |
| Roosky | city | Maigh Eo | Ireland | 54.0252778 | -9.0786111 | 328 | 1829 |
| Roosky | city | Maigh Eo | Ireland | 54.02778 | -8.6780556 | 301 | 2311 |
| Roosky | city | County Leitrim | Ireland | 54.4155556 | -8.1580556 | 482 | 1604 |
| Roosky | city | Ros Comain | Ireland | 53.8333333 | -7.9166667 | 226 | 1828 |
| Roosky | city | County Donegal | Ireland | 54.9922222 | -7.4791667 | 193 | 2300 |
| Roosky | city | County Donegal | Ireland | 55.0933333 | -7.4352778 | 479 | 1934 |
| Roosky | city | County Donegal | Ireland | 55.1438889 | -7.1663889 | 0 | 1066 |
| Roosky Upper | city | County Donegal | Ireland | 54.8263889 | -7.6636111 | 262 | 2316 |
| Rooty Cross | city | Ros Comain | Ireland | 53.3236111 | -8.1002778 | 259 | 2060 |
| Rooves Beg | city | Corcaigh | Ireland | 51.8888889 | -8.8077778 | 308 | 5215 |
| Ropefield | city | Sligeach | Ireland | 54.1255556 | -8.5911111 | 246 | 2671 |
| Ros Comain | city | Ros Comain | Ireland | 53.6333333 | -8.1833333 | 239 | 1849 |
| Ros Comáin | city | Ros Comain | Ireland | 53.6333333 | -8.1833333 | 239 | 1849 |
| Ros Cre | city | Tiobraid Arann | Ireland | 52.9511111 | -7.8016667 | 413 | 2792 |
| Ros Cré | city | Tiobraid Arann | Ireland | 52.9511111 | -7.8016667 | 413 | 2792 |
| Ros Lair | city | Loch Garman | Ireland | 52.2758333 | -6.3844444 | 0 | 2474 |
| Ros Láir | city | Loch Garman | Ireland | 52.2758333 | -6.3844444 | 0 | 2474 |
| Ros Mhic Thriuin | city | Loch Garman | Ireland | 52.3966667 | -6.9366667 | 246 | 3790 |
| Ros Mhic Thriúin | city | Loch Garman | Ireland | 52.3966667 | -6.9366667 | 246 | 3790 |
| Ros Muc | city | Gaillimh | Ireland | 53.3502778 | -9.6158333 | 3 | 1968 |
| Ros O gCairbre | city | | Ireland | 51.5666667 | -9.0333333 | 0 | 2871 |
| Ros an Mhil | city | Gaillimh | Ireland | 53.2708333 | -9.5511111 | 3 | 1875 |
| Ros an Mhíl | city | Gaillimh | Ireland | 53.2708333 | -9.5511111 | 3 | 1875 |
| Ros Ó gCairbre | city | | Ireland | 51.5666667 | -9.0333333 | 0 | 2871 |
| Rosapenna | city | County Donegal | Ireland | 55.1869444 | -7.8236111 | 3 | 1501 |
| Rosbercon | city | Loch Garman | Ireland | 52.3997222 | -6.9477778 | 141 | 3790 |
| Rosborough | city | | Ireland | 54.6333333 | -8.6333333 | 0 | 1616 |
| Roscommon | city | Ros Comain | Ireland | 53.6333333 | -8.1833333 | 239 | 1849 |
| Rosconnell Bridge | city | Cill Chainnigh | Ireland | 52.8511111 | -7.3288889 | 400 | 3016 |
| Roscrea | city | Tiobraid Arann | Ireland | 52.9511111 | -7.8016667 | 413 | 2792 |
| Rosdaul | city | | Ireland | 53.6166667 | -8.4666667 | 249 | 2856 |
| Rosdoagh | city | Maigh Eo | Ireland | 54.2758333 | -9.7908333 | 0 | 1635 |
| Rose Mount | city | | Ireland | 53.4333333 | -7.65 | 374 | 3032 |
| Roseborough | city | Cill Dara | Ireland | 53.2366667 | -6.6575 | 367 | 7161 |
| Rosecommon | city | Ros Comain | Ireland | 53.6333333 | -8.1833333 | 239 | 1849 |
| Rosenallis | city | Laois | Ireland | 53.1344444 | -7.4044444 | 479 | 2766 |
| Rosetown | city | Cill Dara | Ireland | 52.945 | -6.9372222 | 209 | 5728 |
| Rosetown | city | Cill Dara | Ireland | 53.1572222 | -6.7669444 | 367 | 7175 |
| Roshin | city | | Ireland | 54.5333333 | -8.1166667 | 1594 | 2386 |
| Roskeeda | city | Gaillimh | Ireland | 53.3430556 | -9.6436111 | 3 | 1616 |
| Roskeen Bridge | city | Corcaigh | Ireland | 52.1413889 | -8.8122222 | 249 | 5184 |
| Rosmore Bridge | city | Gaillimh | Ireland | 53.0344444 | -8.3388889 | 196 | 2344 |
| Rosmuck | city | Gaillimh | Ireland | 53.3502778 | -9.6158333 | 3 | 1968 |
| Rosmult | city | Tiobraid Arann | Ireland | 52.6819444 | -7.9558333 | 265 | 2850 |
| Rosnakill | city | County Donegal | Ireland | 55.1833333 | -7.6833333 | 137 | 1827 |
| Rosnamullane | city | Laois | Ireland | 53.0641667 | -7.1130556 | 265 | 3379 |
| Ross | city | An Clar | Ireland | 52.5836111 | -9.85 | 3 | 601 |
| Ross | city | Maigh Eo | Ireland | 54.2333333 | -9.2002778 | 0 | 758 |
| Ross | city | County Leitrim | Ireland | 54.2066667 | -8.0444444 | 252 | 1556 |
| Ross | city | Loch Garman | Ireland | 52.3966667 | -6.9366667 | 246 | 3790 |
| Ross | city | | Ireland | 53.5666667 | -6.5833333 | 354 | 4173 |
| Ross Behy | city | Ciarrai | Ireland | 52.0541667 | -9.9775 | 187 | 1153 |
| Ross Bridge | city | Port Lairge | Ireland | 52.2866667 | -7.4891667 | 334 | 4687 |
| Ross Carbery | city | | Ireland | 51.5666667 | -9.0333333 | 0 | 2871 |
| Ross Cross Roads | city | An Mhi | Ireland | 53.5666667 | -6.5797222 | 354 | 4173 |
| Ross Port | city | Maigh Eo | Ireland | 54.2816667 | -9.7997222 | 0 | 1454 |
| Ross West | city | | Ireland | 53.9166667 | -9.25 | 206 | 1807 |
| Rossacoosane | city | Ciarrai | Ireland | 51.8816667 | -9.6652778 | 206 | 2146 |
| Rossaguile Bridge | city | Tiobraid Arann | Ireland | 52.7333333 | -8.3494444 | 531 | 3203 |
| Rossanean | city | Ciarrai | Ireland | 52.1488889 | -9.5063889 | 498 | 2423 |
| Rossanure | city | An Clar | Ireland | 52.9111111 | -8.6183333 | 219 | 2507 |
| Rossarrell | city | County Monaghan | Ireland | 54.3125 | -6.9241667 | 226 | 3542 |
| Rossaveel | city | Gaillimh | Ireland | 53.2708333 | -9.5511111 | 3 | 1875 |
| Rossbeg | city | County Donegal | Ireland | 54.8172222 | -8.5152778 | 0 | 931 |
| Rossblaney | city | County Donegal | Ireland | 55.1822222 | -7.6927778 | 0 | 1827 |
| Rossbrackan | city | County Donegal | Ireland | 54.9516667 | -7.6372222 | 173 | 2103 |
| Rossbrin | city | Corcaigh | Ireland | 51.5352778 | -9.4836111 | 0 | 2271 |
| Rossduff | city | Port Lairge | Ireland | 52.1997222 | -7.0213889 | 246 | 3780 |
| Rossenmore | city | County Louth | Ireland | 54.0363889 | -6.5694444 | 259 | 7680 |
| Rosses Point | city | Sligeach | Ireland | 54.3091667 | -8.5661111 | 0 | 1447 |
| Rosses Upper | city | Sligeach | Ireland | 54.3091667 | -8.5661111 | 0 | 1447 |
| Rossestown | city | Tiobraid Arann | Ireland | 52.7097222 | -7.7886111 | 351 | 2847 |
| Rossestown Bridge | city | Tiobraid Arann | Ireland | 52.7138889 | -7.8013889 | 351 | 2847 |
| Rossgeir | city | County Donegal | Ireland | 54.8491667 | -7.5002778 | 19 | 2479 |
| Rossillybeg | city | County Donegal | Ireland | 54.6147222 | -8.1247222 | 52 | 2133 |
| Rossinan | city | Cill Chainnigh | Ireland | 52.3394444 | -7.1602778 | 249 | 3329 |
| Rossinver | city | County Leitrim | Ireland | 54.3886111 | -8.1097222 | 213 | 1936 |
| Rosslague | city | Corcaigh | Ireland | 51.8711111 | -8.2758333 | 239 | 3493 |
| Rosslare | city | Loch Garman | Ireland | 52.2758333 | -6.3844444 | 0 | 2474 |
| Rossmore | city | | Ireland | 52.15 | -9.5833333 | 252 | 2423 |
| Rossmore | city | Corcaigh | Ireland | 51.6794444 | -8.9905556 | 334 | 5237 |
| Rossmore | city | County Donegal | Ireland | 54.6261111 | -8.1188889 | 72 | 2115 |
| Rossmore | city | Laois | Ireland | 53.07 | -7.4525 | 574 | 2773 |
| Rossmore | city | Laois | Ireland | 52.82 | -7.058333 | 997 | 3288 |
| Rossmore | city | County Monaghan | Ireland | 54.2358333 | -6.9877778 | 288 | 3480 |
| Rossmore Bridge | city | Tiobraid Arann | Ireland | 52.6119444 | -8.083333 | 958 | 2857 |
| Rossmore Cross Roads | city | Laois | Ireland | 53.0752778 | -7.1397222 | 341 | 2787 |
| Rossnagad | city | Laois | Ireland | 53.0716667 | -7.3588889 | 452 | 2773 |
| Rossnakill | city | County Donegal | Ireland | 55.1833333 | -7.6833333 | 137 | 1827 |
| Rossnowlagh | city | County Donegal | Ireland | 54.5688889 | -8.2105556 | 131 | 934 |
| Rossnowlagh Lower | city | County Donegal | Ireland | 54.5688889 | -8.2105556 | 131 | 934 |
| Rossnowlagh Upper | city | County Donegal | Ireland | 54.5533333 | -8.1986111 | 275 | 1490 |
| Rostellan | city | Corcaigh | Ireland | 51.8486111 | -8.1955556 | 137 | 4624 |
| Rosturk | city | Maigh Eo | Ireland | 53.9 | -9.7177778 | 0 | 863 |
| Rottenhill | city | Cill Mhantain | Ireland | 53.0238889 | -6.7138889 | 528 | 5319 |
| Roundfort | city | | Ireland | 53.6333333 | -9.1 | 206 | 1817 |
| Roundstone | city | Gaillimh | Ireland | 53.4 | -9.9166667 | 0 | 1625 |
| Roundtown | city | | Ireland | 53.3097222 | -6.2852778 | 180 | 102164 |
| Roundwood | city | Cill Mhantain | Ireland | 53.0586111 | -6.2261111 | 793 | 4565 |
| Rourkes Town | city | County Louth | Ireland | 54.0183333 | -6.2216667 | 344 | 6939 |
| Roury Bridge | city | Corcaigh | Ireland | 51.5836111 | -9.0697222 | 232 | 4787 |
| Routagh Bridge | city | County Limerick | Ireland | 52.6208333 | -8.6155556 | 183 | 5467 |
| Rover | city | Sligeach | Ireland | 54.0916667 | -8.2088889 | 590 | 2338 |
| Roverville Cross Roads | city | Ciarrai | Ireland | 52.2044444 | -9.5552778 | 213 | 2422 |
| Rowls Allen | city | Corcaigh | Ireland | 52.2919444 | -9.0391667 | 951 | 5319 |
| Roxborough | city | | Ireland | 54.6333333 | -8.6333333 | 0 | 1616 |
| Roy | city | Maigh Eo | Ireland | 54.0802778 | -9.9452778 | 3 | 727 |
| Royaloak | city | County Carlow | Ireland | 52.7 | -6.9866667 | 114 | 4002 |
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