| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Rapia Cross Roads | city | Ireland | 52.89 | -8.16 | 249 | 7387 | |
| Rath | city | Ireland | 53.09 | -8.04 | 226 | 988 | |
| Rathcabban | city | Ireland | 53.12 | -8.03 | 216 | 1056 | |
| Rathcardan | city | Ireland | 52.73 | -7.99 | 830 | 1892 | |
| Rathfalla | city | Ireland | 52.86 | -8.14 | 252 | 5037 | |
| Rear Cross | city | Ireland | 52.69 | -8.24 | 830 | 948 | |
| Redwood | city | Ireland | 53.12 | -8.11 | 236 | 741 | |
| Riverstown | city | Ireland | 53.08 | -7.93 | 226 | 5211 | |
| Riverview | city | Ireland | 52.91 | -8.24 | 206 | 5070 | |
| Ros Cré | city | Ireland | 52.95 | -7.80 | 413 | 6241 | |
| Roscrea | city | Ireland | 52.95 | -7.80 | 413 | 6241 | |
| Rosdrehia | city | Ireland | 52.88 | -8.00 | 830 | 1289 | |
| Rosmult | city | Ireland | 52.68 | -7.96 | 265 | 1525 | |
| Rossaguile Bridge | city | Ireland | 52.73 | -8.35 | 830 | 1322 | |
| Rossestown | city | Ireland | 52.71 | -7.79 | 351 | 8912 | |
| Rossestown Bridge | city | Ireland | 52.71 | -7.80 | 351 | 9084 |