| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Baile Bhriain | city | Offaly | Ireland | 53.36 | -7.15 | 390 | 1768 |
| Baile Bhriotáin | city | Offaly | Ireland | 53.34 | -7.14 | 364 | 1684 |
| Baile Fearaíl | city | Offaly | Ireland | 53.24 | -7.64 | 249 | 1292 |
| Baile Liam | city | Offaly | Ireland | 53.11 | -7.88 | 242 | 5196 |
| Baile Mhic Aodha | city | Offaly | Ireland | 53.31 | -7.23 | 298 | 1578 |
| Baile Mhic Coillín | city | Offaly | Ireland | 53.24 | -7.39 | 288 | 1840 |
| Baile Mhic Uallacháin | city | Offaly | Ireland | 53.19 | -8.04 | 180 | 1413 |
| Baile Mhic Ádaim | city | Offaly | Ireland | 53.13 | -7.66 | 830 | 827 |
| Baile Uí Chomáin | city | Offaly | Ireland | 53.29 | -7.36 | 331 | 1429 |
| Baile Uí Chéin | city | Offaly | Ireland | 53.23 | -7.29 | 282 | 1724 |
| Baile Uí Dhuibh | city | Offaly | Ireland | 53.25 | -7.29 | 282 | 2084 |
| Baile Uí Dhálaigh | city | Offaly | Ireland | 53.28 | -7.78 | 206 | 2290 |
| Baile an Chillín | city | Offaly | Ireland | 53.30 | -7.09 | 288 | 2426 |
| Baile an Churraigh | city | Offaly | Ireland | 53.28 | -7.66 | 236 | 1615 |
| Baile an Leamhain | city | Offaly | Ireland | 53.22 | -7.39 | 324 | 1718 |
| Baile na Sraithe | city | Offaly | Ireland | 53.29 | -7.57 | 236 | 4562 |
| Baile Éisill | city | Offaly | Ireland | 53.37 | -7.15 | 393 | 1740 |
| Ballaghassaan | city | Offaly | Ireland | 53.26 | -7.19 | 269 | 979 |
| Ballard | city | Offaly | Ireland | 53.25 | -7.51 | 249 | 12785 |
| Ballinagar | city | Offaly | Ireland | 53.26 | -7.33 | 278 | 2164 |
| Ballincor | city | Offaly | Ireland | 53.02 | -7.94 | 249 | 1243 |
| Ballincur | city | Offaly | Ireland | 53.28 | -7.66 | 236 | 1615 |
| Ballyboy | city | Offaly | Ireland | 53.17 | -7.70 | 255 | 1630 |
| Ballybrin | city | Offaly | Ireland | 53.01 | -7.80 | 830 | 3107 |
| Ballybrittan | city | Offaly | Ireland | 53.34 | -7.14 | 364 | 1684 |
| Ballybryan | city | Offaly | Ireland | 53.36 | -7.15 | 390 | 1768 |
| Ballycollin | city | Offaly | Ireland | 53.16 | -7.72 | 282 | 1857 |
| Ballycollin | city | Offaly | Ireland | 53.24 | -7.39 | 288 | 1840 |
| Ballycommon | city | Offaly | Ireland | 53.29 | -7.36 | 331 | 1429 |
| Ballycowan Bridge | city | Offaly | Ireland | 53.28 | -7.55 | 236 | 6571 |
| Ballycumber | city | Offaly | Ireland | 53.32 | -7.68 | 226 | 2007 |
| Ballydaly | city | Offaly | Ireland | 53.28 | -7.78 | 206 | 2290 |
| Ballyduff | city | Offaly | Ireland | 53.25 | -7.29 | 282 | 2084 |
| Ballyeighan | city | Offaly | Ireland | 53.05 | -7.91 | 249 | 4211 |
| Ballyfarrell | city | Offaly | Ireland | 53.24 | -7.64 | 249 | 1292 |
| Ballyfore | city | Offaly | Ireland | 53.32 | -7.12 | 331 | 1808 |
| Ballygaddy Cross Roads | city | Offaly | Ireland | 53.04 | -7.81 | 830 | 985 |
| Ballyheashill | city | Offaly | Ireland | 53.37 | -7.15 | 393 | 1740 |
| Ballyhugh | city | Offaly | Ireland | 53.31 | -7.23 | 298 | 1578 |
| Ballykean | city | Offaly | Ireland | 53.23 | -7.29 | 282 | 1724 |
| Ballykilleen | city | Offaly | Ireland | 53.30 | -7.09 | 288 | 2426 |
| Ballykilleen Cross Roads | city | Offaly | Ireland | 53.32 | -7.11 | 314 | 3040 |
| Ballylevin | city | Offaly | Ireland | 53.22 | -7.39 | 324 | 1718 |
| Ballymacoolaghan | city | Offaly | Ireland | 53.19 | -8.04 | 180 | 1413 |
| Ballymullen | city | Offaly | Ireland | 53.30 | -7.32 | 351 | 1987 |
| Ballynakill | city | Offaly | Ireland | 53.26 | -7.26 | 278 | 1427 |
| Ballynakill | city | Offaly | Ireland | 52.90 | -7.99 | 830 | 1355 |
| Ballynasrah | city | Offaly | Ireland | 53.29 | -7.57 | 236 | 4562 |
| Ballyshane | city | Offaly | Ireland | 53.09 | -7.76 | 830 | 973 |
| Ballyshear | city | Offaly | Ireland | 53.19 | -7.28 | 298 | 1301 |
| Ballywhire | city | Offaly | Ireland | 53.19 | -7.81 | 219 | 1156 |
| Ballywilliam | city | Offaly | Ireland | 53.11 | -7.88 | 242 | 5196 |
| Banagher | city | Offaly | Ireland | 53.19 | -7.99 | 351 | 2455 |
| Barlahan | city | Offaly | Ireland | 53.10 | -7.64 | 987 | 776 |
| Barna | city | Offaly | Ireland | 52.93 | -7.95 | 360 | 1362 |
| Barnaboy | city | Offaly | Ireland | 53.32 | -7.37 | 416 | 1131 |
| Barnan | city | Offaly | Ireland | 53.33 | -7.32 | 830 | 1610 |
| Barrysbrook | city | Offaly | Ireland | 53.34 | -7.25 | 830 | 1387 |
| Bealach Asáin | city | Offaly | Ireland | 53.26 | -7.19 | 269 | 979 |
| Beannchar | city | Offaly | Ireland | 53.19 | -7.99 | 351 | 2455 |
| Bearna Chlaí Chosnaigh | city | Offaly | Ireland | 52.93 | -7.95 | 360 | 1362 |
| Behanamuck | city | Offaly | Ireland | 53.21 | -7.72 | 236 | 1717 |
| Bellefield | city | Offaly | Ireland | 52.99 | -7.95 | 308 | 1358 |
| Bellmount | city | Offaly | Ireland | 53.26 | -7.89 | 196 | 1731 |
| Belmont | city | Offaly | Ireland | 53.26 | -7.89 | 196 | 1731 |
| Biorra | city | Offaly | Ireland | 53.09 | -7.91 | 226 | 5432 |
| Birr | city | Offaly | Ireland | 53.09 | -7.91 | 226 | 5432 |
| Black Lion | city | Offaly | Ireland | 53.21 | -7.62 | 269 | 1331 |
| Bleach Hill | city | Offaly | Ireland | 53.25 | -7.97 | 180 | 1359 |
| Blue Ball | city | Offaly | Ireland | 53.22 | -7.61 | 255 | 1557 |
| Boheraphuca | city | Offaly | Ireland | 53.02 | -7.76 | 830 | 938 |
| Bohernagrisna | city | Offaly | Ireland | 53.32 | -7.67 | 229 | 2289 |
| Bolart Bridge | city | Offaly | Ireland | 53.34 | -7.65 | 229 | 3535 |
| Boolinaig Bridge | city | Offaly | Ireland | 53.13 | -7.89 | 229 | 4533 |
| Brackagh | city | Offaly | Ireland | 53.21 | -7.10 | 246 | 1125 |
| Brackagh | city | Offaly | Ireland | 53.27 | -7.21 | 272 | 983 |
| Brackagh | city | Offaly | Ireland | 53.31 | -7.71 | 219 | 1766 |
| Brackay | city | Offaly | Ireland | 53.21 | -7.80 | 216 | 1569 |
| Bracknagh | city | Offaly | Ireland | 53.21 | -7.10 | 246 | 1125 |
| Breacánach | city | Offaly | Ireland | 53.21 | -7.10 | 246 | 1125 |
| Breaghmore | city | Offaly | Ireland | 53.09 | -7.80 | 344 | 1083 |
| Brookes Cross Roads | city | Offaly | Ireland | 52.98 | -7.98 | 830 | 1346 |
| Brooklawn | city | Offaly | Ireland | 52.93 | -7.88 | 830 | 2281 |
| Brosna | city | Offaly | Ireland | 52.99 | -7.89 | 249 | 2039 |
| Brosna Bridge | city | Offaly | Ireland | 53.33 | -7.67 | 229 | 2412 |
| Brothlach | city | Offaly | Ireland | 53.19 | -7.78 | 223 | 1405 |
| Broughal | city | Offaly | Ireland | 53.19 | -7.78 | 223 | 1405 |
| Buaile na nDrisneach | city | Offaly | Ireland | 53.32 | -7.67 | 229 | 2289 |
| Bun an Chaorthainn | city | Offaly | Ireland | 53.23 | -7.68 | 249 | 1233 |
| Bunakeeran | city | Offaly | Ireland | 53.23 | -7.68 | 249 | 1233 |
| Béal Átha Chomair | city | Offaly | Ireland | 53.32 | -7.68 | 226 | 2007 |