| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Raheens | city | Ireland | 52.21 | -7.26 | 249 | 2531 | |
| Rapemills | city | Ireland | 52.13 | -7.92 | 226 | 2131 | |
| Rath na mBinineach | city | Ireland | 52.03 | -7.59 | 0 | 1116 | |
| Rathgormack | city | Ireland | 52.31 | -7.50 | 830 | 1042 | |
| Rathgormuck | city | Ireland | 52.31 | -7.50 | 830 | 1042 | |
| Rathguage | city | Ireland | 52.15 | -7.33 | 65 | 1397 | |
| Rathmaiden | city | Ireland | 52.23 | -7.44 | 380 | 1896 | |
| Rathmoylan | city | Ireland | 52.14 | -7.04 | 0 | 2133 | |
| Rathnameneenagh | city | Ireland | 52.03 | -7.59 | 0 | 1116 | |
| Reanaboola | city | Ireland | 52.04 | -7.79 | 830 | 1117 | |
| Reanaclogheen | city | Ireland | 52.00 | -7.67 | 403 | 721 | |
| Reanadampaun Commons | city | Ireland | 52.23 | -7.69 | 830 | 1181 | |
| Reanadogheen | city | Ireland | 52.00 | -7.67 | 403 | 721 | |
| Redgate Cross Roads | city | Ireland | 52.16 | -7.78 | 351 | 1257 | |
| Reeragullee | city | Ireland | 52.02 | -7.68 | 830 | 1367 | |
| Rincrew | city | Ireland | 51.98 | -7.88 | 29 | 8066 | |
| Ring | city | Ireland | 52.05 | -7.59 | 180 | 3684 | |
| Ringville | city | Ireland | 52.05 | -7.59 | 180 | 3684 | |
| Riverquarter | city | Ireland | 52.31 | -7.30 | 45 | 3228 | |
| Robert's Cross Roads | city | Ireland | 52.05 | -7.61 | 239 | 8616 | |
| Robertstown | city | Ireland | 52.24 | -7.38 | 830 | 1896 | |
| Robert’s Cross Roads | city | Ireland | 52.05 | -7.61 | 239 | 8616 | |
| Roseville | city | Ireland | 52.13 | -7.96 | 183 | 2135 | |
| Ross | city | Ireland | 52.23 | -7.33 | 830 | 1662 | |
| Ross Bridge | city | Ireland | 52.29 | -7.49 | 334 | 1004 | |
| Rossduff | city | Ireland | 52.20 | -7.02 | 246 | 5907 | |
| Russellstown | city | Ireland | 52.31 | -7.76 | 830 | 3416 | |
| Russellstown New | city | Ireland | 52.31 | -7.73 | 830 | 10962 | |
| Ré na gCloichín | city | Ireland | 52.00 | -7.67 | 403 | 721 |