| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Rabbitburrow | city | County Offaly | Ireland | 53.2541667 | -7.6519444 | 242 | 2654 |
| Rahan | city | County Offaly | Ireland | 53.2772222 | -7.6305556 | 236 | 2654 |
| Raheen | city | County Offaly | Ireland | 53.3544444 | -7.6277778 | 236 | 2692 |
| Rapemills | city | County Offaly | Ireland | 53.1411111 | -7.9261111 | 216 | 2691 |
| Rath | city | County Offaly | Ireland | 53.1361111 | -7.8075 | 239 | 2661 |
| Rathcobican | city | County Offaly | Ireland | 53.3425 | -7.1986111 | 396 | 2696 |
| Rathgibbon | city | County Offaly | Ireland | 53.1141667 | -7.8041667 | 249 | 2664 |
| Rathlumber | city | County Offaly | Ireland | 53.3077778 | -7.1602778 | 305 | 2658 |
| Rathvilla | city | County Offaly | Ireland | 53.2966667 | -7.1461111 | 291 | 2658 |
| Reask | city | County Offaly | Ireland | 53.2258333 | -7.98 | 180 | 2696 |
| Red Gate | city | County Offaly | Ireland | 53.2625 | -7.5052778 | 242 | 2659 |
| Rhode | city | County Offaly | Ireland | 53.3522222 | -7.2016667 | 413 | 2696 |
| Rhode Bridge | city | County Offaly | Ireland | 53.3355556 | -7.2002778 | 374 | 2696 |
| Riverlyons | city | County Offaly | Ireland | 53.2852778 | -7.2569444 | 275 | 2654 |
| Road | city | County Offaly | Ireland | 53.3522222 | -7.2016667 | 413 | 2696 |
| Rockfield | city | County Offaly | Ireland | 53.2066667 | -7.455 | 370 | 2726 |
| Rod | city | County Offaly | Ireland | 53.3522222 | -7.2016667 | 413 | 2696 |
| Ryan's Cross Roads | city | County Offaly | Ireland | 52.9430556 | -7.9180556 | 347 | 2696 |
| Ryanʼs Cross Roads | city | County Offaly | Ireland | 52.9430556 | -7.9180556 | 347 | 2696 |
| Ród | city | County Offaly | Ireland | 53.3522222 | -7.2016667 | 413 | 2696 |
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