| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Galley Bridge | city | Ireland | 54.06 | -8.07 | 190 | 1805 | |
| Garigue | city | Ireland | 53.12 | -8.00 | 206 | 1284 | |
| Garrafranes | city | Ireland | 53.63 | -8.83 | 216 | 1600 | |
| Garrafrauns | city | Ireland | 53.63 | -8.83 | 216 | 1600 | |
| Garrane | city | Ireland | 51.92 | -9.03 | 357 | 2207 | |
| Garranlahan | city | Ireland | 53.72 | -8.67 | 288 | 1308 | |
| Garraunnatooha | city | Ireland | 52.67 | -9.40 | 62 | 1325 | |
| Garrowmore | city | Ireland | 53.62 | -9.15 | 180 | 1844 | |
| Garrynderk | city | Ireland | 52.36 | -8.67 | 285 | 4543 | |
| Glackaunadarra | city | Ireland | 54.12 | -8.17 | 734 | 735 | |
| Glackaunadarragh | city | Ireland | 54.12 | -8.17 | 734 | 735 | |
| Glantane | city | Ireland | 52.10 | -8.75 | 590 | 1684 | |
| Glen | city | Ireland | 53.83 | -7.43 | 331 | 1671 | |
| Glenbaun | city | Ireland | 52.52 | -9.20 | 511 | 1378 | |
| Glendowan | city | Ireland | 54.80 | -7.97 | 574 | 444 | |
| Gleneely | city | Ireland | 55.23 | -7.15 | 190 | 1425 | |
| Glengort | city | Ireland | 52.37 | -9.20 | 538 | 1936 | |
| Glenieraragh | city | Ireland | 55.10 | -7.82 | 931 | 944 | |
| Glenmullynaha | city | Ireland | 53.92 | -8.75 | 465 | 1498 | |
| Glenmullynaha Cross Roads | city | Ireland | 53.92 | -8.75 | 465 | 1498 | |
| Glennagoul | city | Ireland | 52.27 | -8.55 | 390 | 1036 | |
| Glentavraun | city | Ireland | 53.88 | -8.80 | 285 | 1446 | |
| Glinsk | city | Ireland | 53.65 | -8.42 | 249 | 1135 | |
| Gneeveguilla | city | Ireland | 52.12 | -9.27 | 534 | 2185 | |
| Gneeves | city | Ireland | 52.30 | -9.30 | 738 | 1521 | |
| Gneeves | city | Ireland | 52.15 | -8.80 | 259 | 1527 | |
| Gneevgullia | city | Ireland | 52.12 | -9.27 | 534 | 2185 | |
| Golan | city | Ireland | 54.33 | -7.05 | 567 | 2042 | |
| Gorey | city | Ireland | 55.25 | -7.20 | 370 | 2031 | |
| Gortbaun | city | Ireland | 53.78 | -9.38 | 318 | 1287 | |
| Gortfree | city | Ireland | 53.48 | -8.08 | 239 | 1575 | |
| Gortnasate | city | Ireland | 55.03 | -8.40 | 3 | 1641 | |
| Gowlane | city | Ireland | 51.92 | -9.57 | 403 | 2338 | |
| Graffy | city | Ireland | 54.07 | -9.05 | 226 | 1338 | |
| Graigue | city | Ireland | 53.12 | -8.00 | 206 | 1284 | |
| Grange | city | Ireland | 53.82 | -8.05 | 223 | 1142 | |
| Grange | city | Ireland | 52.15 | -8.30 | 114 | 6445 | |
| Granny | city | Ireland | 53.92 | -8.30 | 232 | 2547 | |
| Greaghnageeragh | city | Ireland | 54.08 | -8.18 | 616 | 1002 | |
| Greenane | city | Ireland | 51.87 | -9.67 | 0 | 547 | |
| Greencastle | city | Ireland | 55.20 | -6.98 | 0 | 2068 | |
| Grousehall | city | Ireland | 53.95 | -7.12 | 534 | 1592 | |
| Gurteenulla | city | Ireland | 51.58 | -9.43 | 216 | 930 |