| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Baile Daighean | city | Roscommon | Ireland | 53.34 | -8.09 | 308 | 1277 |
| Baile an Locha | city | Roscommon | Ireland | 53.73 | -8.63 | 252 | 1267 |
| Ballaghaderreen | city | Roscommon | Ireland | 53.90 | -8.58 | 229 | 2641 |
| Ballinafad | city | Roscommon | Ireland | 53.73 | -8.08 | 830 | 1445 |
| Ballinameen | city | Roscommon | Ireland | 53.90 | -8.30 | 236 | 1002 |
| Ballinlough | city | Roscommon | Ireland | 53.73 | -8.63 | 252 | 1267 |
| Ballintober | city | Roscommon | Ireland | 53.72 | -8.42 | 249 | 1708 |
| Ballybay | city | Roscommon | Ireland | 53.47 | -8.00 | 203 | 4018 |
| Ballydagan | city | Roscommon | Ireland | 53.34 | -8.09 | 308 | 1277 |
| Ballydangan | city | Roscommon | Ireland | 53.34 | -8.09 | 308 | 1277 |
| Ballydooley | city | Roscommon | Ireland | 53.67 | -8.33 | 252 | 1112 |
| Ballyfarnan | city | Roscommon | Ireland | 54.07 | -8.20 | 177 | 1010 |
| Ballyfarnon | city | Roscommon | Ireland | 54.07 | -8.20 | 177 | 1010 |
| Ballynahoogh | city | Roscommon | Ireland | 53.93 | -8.25 | 249 | 1154 |
| Ballynakill | city | Roscommon | Ireland | 53.37 | -7.93 | 187 | 10809 |
| Ballytrasna | city | Roscommon | Ireland | 53.96 | -8.29 | 249 | 3344 |
| Beal Atha Fearnain | city | Roscommon | Ireland | 54.07 | -8.20 | 177 | 1010 |
| Beal Atha na gCarr | city | Roscommon | Ireland | 53.83 | -8.38 | 311 | 916 |
| Beal na mBuilli | city | Roscommon | Ireland | 53.78 | -8.10 | 236 | 1692 |
| Bealach an Doirin | city | Roscommon | Ireland | 53.90 | -8.58 | 229 | 2641 |
| Bellagad | city | Roscommon | Ireland | 53.57 | -8.28 | 226 | 1409 |
| Bellanagare | city | Roscommon | Ireland | 53.83 | -8.38 | 311 | 916 |
| Bellanamullia | city | Roscommon | Ireland | 53.42 | -8.02 | 830 | 4908 |
| Bellaugh | city | Roscommon | Ireland | 53.43 | -7.97 | 203 | 14893 |
| Bellimeny | city | Roscommon | Ireland | 53.41 | -8.15 | 285 | 1241 |
| Belrea | city | Roscommon | Ireland | 53.40 | -8.04 | 830 | 2418 |
| Bernard's Cross Roads | city | Roscommon | Ireland | 53.42 | -8.04 | 830 | 3516 |
| Bernard’s Cross Roads | city | Roscommon | Ireland | 53.42 | -8.04 | 830 | 3516 |
| Boyle | city | Roscommon | Ireland | 53.97 | -8.30 | 249 | 3323 |
| Breandrum | city | Roscommon | Ireland | 53.96 | -8.34 | 249 | 2999 |
| Breedoge | city | Roscommon | Ireland | 53.90 | -8.38 | 246 | 990 |
| Brideswell | city | Roscommon | Ireland | 53.45 | -8.10 | 318 | 1365 |
| Bridgetown | city | Roscommon | Ireland | 53.75 | -8.52 | 242 | 2604 |