| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Carraig Alainn | city | County Leitrim | Ireland | 53.9772222 | -7.6458333 | 249 | 1637 |
| Carraig Álainn | city | County Leitrim | Ireland | 53.9772222 | -7.6458333 | 249 | 1637 |
| Carrick on Shannon | city | County Leitrim | Ireland | 53.9469444 | -8.09 | 246 | 1721 |
| Carrigallen | city | County Leitrim | Ireland | 53.9772222 | -7.6458333 | 249 | 1637 |
| Castlecarra | city | County Leitrim | Ireland | 53.9541667 | -8.0605556 | 239 | 1615 |
| Castlefore | city | County Leitrim | Ireland | 54.0275 | -7.9063889 | 160 | 1393 |
| Cionn Locha | city | County Leitrim | Ireland | 54.45 | -8.2833333 | 144 | 1436 |
| Cleenaghoo | city | County Leitrim | Ireland | 54.0558333 | -7.7786111 | 249 | 1549 |
| Cloonaquin | city | County Leitrim | Ireland | 54.2830556 | -8.2113889 | 206 | 1380 |
| Cloonboygher | city | County Leitrim | Ireland | 54.0269444 | -7.6955556 | 252 | 1547 |
| Clooncose | city | County Leitrim | Ireland | 54.0258333 | -7.6747222 | 252 | 1547 |
| Cloone | city | County Leitrim | Ireland | 53.95 | -7.7833333 | 239 | 1413 |
| Cloontyprughlish | city | County Leitrim | Ireland | 54.3847222 | -8.3233333 | 738 | 1470 |
| Cluainin | city | County Leitrim | Ireland | 54.3063889 | -8.1761111 | 229 | 1377 |
| Cluainín | city | County Leitrim | Ireland | 54.3063889 | -8.1761111 | 229 | 1377 |
| Coillte Clochair | city | County Leitrim | Ireland | 54.3583333 | -8.0366667 | 249 | 2037 |
| Cora Droma Ruisc | city | County Leitrim | Ireland | 53.9469444 | -8.09 | 246 | 1721 |
| Cora Droma Rúisc | city | County Leitrim | Ireland | 53.9469444 | -8.09 | 246 | 1721 |
| Corchuill | city | County Leitrim | Ireland | 54.1886111 | -8.1188889 | 324 | 1408 |
| Corderry Cross Roads | city | County Leitrim | Ireland | 53.9927778 | -7.9469444 | 180 | 1395 |
| Corlea | city | County Leitrim | Ireland | 53.9613889 | -7.9366667 | 429 | 1395 |
| Corlisheen | city | County Leitrim | Ireland | 53.9652778 | -7.99 | 246 | 1404 |
| Cornageeragh | city | County Leitrim | Ireland | 54.0769444 | -7.8113889 | 252 | 1502 |
| Cornamucklagh South | city | County Leitrim | Ireland | 54.1238889 | -8.0175 | 452 | 1424 |
| Corractoona | city | County Leitrim | Ireland | 54.3375 | -7.9908333 | 246 | 2322 |
| Corraleehan | city | County Leitrim | Ireland | 54.1083333 | -7.7966667 | 262 | 1845 |
| Corraneary | city | County Leitrim | Ireland | 53.9602778 | -7.7244444 | 456 | 1397 |
| Corratimore | city | County Leitrim | Ireland | 54.1952778 | -8.1997222 | 475 | 1459 |
| Corrawaleen | city | County Leitrim | Ireland | 54.0113889 | -7.7077778 | 265 | 1547 |
| Corrawalleen | city | County Leitrim | Ireland | 54.0113889 | -7.7077778 | 265 | 1547 |
| Corrawallen | city | County Leitrim | Ireland | 54.0113889 | -7.7077778 | 265 | 1547 |
| Corry | city | County Leitrim | Ireland | 54.1702778 | -8.0619444 | 190 | 1556 |
| Corryolus | city | County Leitrim | Ireland | 53.9547222 | -8.0916667 | 249 | 1721 |
| Cromlin | city | County Leitrim | Ireland | 54.0838889 | -7.8347222 | 311 | 1750 |
| Cuilmore | city | County Leitrim | Ireland | 54.04 | -7.7491667 | 249 | 1424 |
| Curraghnabania | city | County Leitrim | Ireland | 54.1019444 | -7.8572222 | 666 | 1750 |
| Curraghs North | city | County Leitrim | Ireland | 54.1416667 | -8.1155556 | 190 | 1474 |
| Curraun | city | County Leitrim | Ireland | 53.9480556 | -7.8441667 | 419 | 1394 |
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