| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Coarsefield | city | Galway | Ireland | 53.33 | -9.04 | 19 | 25042 |
| Coill Mhic Sheáin | city | Galway | Ireland | 53.23 | -8.05 | 187 | 700 |
| Coill Rua | city | Galway | Ireland | 53.26 | -9.36 | 68 | 886 |
| Coill Uachtair | city | Galway | Ireland | 53.32 | -9.05 | 16 | 37746 |
| Coill na Buiríse | city | Galway | Ireland | 53.20 | -8.05 | 180 | 743 |
| Coillín | city | Galway | Ireland | 52.99 | -8.79 | 206 | 727 |
| Coillín Árann | city | Galway | Ireland | 53.20 | -8.93 | 3 | 2190 |
| Coldwood | city | Galway | Ireland | 53.25 | -8.81 | 65 | 2144 |
| Colmanstown | city | Galway | Ireland | 53.39 | -8.62 | 249 | 1322 |
| Connagh | city | Galway | Ireland | 52.98 | -8.37 | 193 | 874 |
| Coolacurn | city | Galway | Ireland | 53.22 | -8.05 | 183 | 710 |
| Coolagh | city | Galway | Ireland | 53.30 | -9.05 | 6 | 49744 |
| Coolagh | city | Galway | Ireland | 53.37 | -9.22 | 203 | 2109 |
| Coolpowra | city | Galway | Ireland | 53.12 | -8.29 | 830 | 1418 |
| Cor an Dola | city | Galway | Ireland | 53.40 | -9.00 | 150 | 3025 |
| Corballymore | city | Galway | Ireland | 53.23 | -8.42 | 249 | 1095 |
| Corboley | city | Galway | Ireland | 53.29 | -9.15 | 203 | 15704 |
| Corboley (Morgan) | city | Galway | Ireland | 53.29 | -9.15 | 203 | 15704 |
| Cornamona | city | Galway | Ireland | 53.52 | -9.45 | 68 | 835 |
| Cornamucklagh | city | Galway | Ireland | 53.42 | -8.32 | 229 | 1088 |
| Corr an Fheileastraim | city | Galway | Ireland | 53.42 | -9.20 | 59 | 1713 |
| Corr na Móna | city | Galway | Ireland | 53.52 | -9.45 | 68 | 835 |
| Corraduff | city | Galway | Ireland | 53.21 | -8.95 | 0 | 2558 |
| Corrafaireen | city | Galway | Ireland | 53.40 | -8.74 | 370 | 2015 |
| Corrandulla | city | Galway | Ireland | 53.40 | -9.00 | 150 | 3025 |
| Corranellistrum | city | Galway | Ireland | 53.42 | -9.20 | 59 | 1713 |
| Corrantarramul | city | Galway | Ireland | 53.35 | -8.69 | 203 | 1663 |
| Correfin | city | Galway | Ireland | 53.43 | -8.85 | 108 | 2687 |
| Corrofin | city | Galway | Ireland | 53.43 | -8.85 | 108 | 2687 |
| Corrthamhnach | city | Galway | Ireland | 53.47 | -10.08 | 0 | 1229 |
| Corrundulla | city | Galway | Ireland | 53.40 | -9.00 | 150 | 3025 |
| Corskeagh | city | Galway | Ireland | 53.36 | -8.54 | 249 | 1087 |
| Costelloe | city | Galway | Ireland | 53.29 | -9.55 | 26 | 2349 |
| Coteeny | city | Galway | Ireland | 53.39 | -9.06 | 42 | 2456 |
| Coxtown | city | Galway | Ireland | 53.25 | -8.32 | 249 | 1282 |