| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Raconnell | city | County Monaghan | Ireland | 54.2669444 | -7.0188889 | 295 | 3476 |
| Radeerpark | city | County Monaghan | Ireland | 54.1519444 | -7.1883333 | 498 | 3419 |
| Radrum | city | County Monaghan | Ireland | 54.1813889 | -6.9547222 | 495 | 3483 |
| Raferagh | city | County Monaghan | Ireland | 53.9783333 | -6.8388889 | 498 | 3051 |
| Rahans | city | County Monaghan | Ireland | 53.9927778 | -6.655 | 246 | 5086 |
| Rockcorry | city | County Monaghan | Ireland | 54.1166667 | -7.0166667 | 367 | 3200 |
| Rockfield | city | County Monaghan | Ireland | 54.1113889 | -7.2172222 | 298 | 3008 |
| Rossarrell | city | County Monaghan | Ireland | 54.3125 | -6.9241667 | 226 | 3542 |
| Rossmore | city | County Monaghan | Ireland | 54.2358333 | -6.9877778 | 288 | 3480 |
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