| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Gafl | city | Iceland | 63.83 | -20.78 | 26 | 58 | |
| Galtafell | city | Iceland | 64.08 | -20.32 | 554 | 102 | |
| Galtalaekur | city | Iceland | 64.17 | -20.38 | 249 | 177 | |
| Galtalækur | city | Iceland | 64.17 | -20.38 | 249 | 177 | |
| Gata | city | Iceland | 64.10 | -20.35 | 321 | 156 | |
| Gaulverjabaer | city | Iceland | 63.83 | -20.88 | 19 | 88 | |
| Gaulverjabær | city | Iceland | 63.83 | -20.88 | 19 | 88 | |
| Gegnisholapartur | city | Iceland | 63.85 | -20.92 | 19 | 0 | |
| Gegnisholar | city | Iceland | 63.85 | -20.92 | 19 | 0 | |
| Geirakot | city | Iceland | 63.92 | -21.05 | 52 | 2630 | |
| Geldingaholt | city | Iceland | 64.05 | -20.27 | 291 | 16 | |
| Geysir | city | Iceland | 64.32 | -20.30 | 324 | 15 | |
| Gislastadhir | city | Iceland | 64.00 | -20.65 | 154 | 17 | |
| Gisting | city | Iceland | 64.18 | -20.52 | 374 | 140 | |
| Gjabakki | city | Iceland | 64.23 | -21.03 | 561 | 0 | |
| Gljakot | city | Iceland | 63.88 | -20.93 | 42 | 503 | |
| Gljufur | city | Iceland | 64.00 | -21.15 | 213 | 1508 | |
| Glóra | city | Iceland | 63.92 | -20.93 | 55 | 937 | |
| Glóra | city | Iceland | 64.05 | -20.30 | 311 | 28 | |
| Gneistastadhir | city | Iceland | 63.93 | -20.78 | 252 | 116 | |
| Gneistastaðir | city | Iceland | 63.93 | -20.78 | 252 | 116 | |
| Graenholl | city | Iceland | 63.97 | -21.15 | 39 | 1191 | |
| Grimslaekur | city | Iceland | 63.93 | -21.32 | 16 | 5 | |
| Grof | city | Iceland | 63.87 | -20.75 | 36 | 83 | |
| Grof | city | Iceland | 64.13 | -20.32 | 282 | 237 | |
| Grof | city | Iceland | 64.20 | -20.75 | 255 | 80 | |
| Grænhóll | city | Iceland | 63.97 | -21.15 | 39 | 1191 | |
| Grímslækur | city | Iceland | 63.93 | -21.32 | 16 | 5 | |
| Gygjarholl | city | Iceland | 64.28 | -20.23 | 387 | 1 | |
| Gygjarholskot | city | Iceland | 64.28 | -20.22 | 456 | 5 | |
| Gíslastaðir | city | Iceland | 64.00 | -20.65 | 154 | 17 | |
| Göltur | city | Iceland | 64.02 | -20.75 | 160 | 0 |