Geographic Name | Country Reference | Latitude (deg min) | Longitude (deg min) |
| Green Islands | Papua New Guinea | 4 30 S | 154 10 E |
| Greenland Sea | Arctic Ocean | 79 00 N | 5 00 W |
| Grenadines, Northern (island group) | Saint Vincent and the Grenadines | 13 15 N | 61 12 W |
| Grenadines, Southern (island group) | Grenada | 12 07 N | 61 40 W |
| Grytviken (town; on South Georgia) | South Georgia and the South Sandwich Islands | 54 15 S | 36 45 W |
| Guadalahara (city) | Mexico | 20 40 N | 103 24 W |
| Guadalcanal (island) | Solomon Islands | 9 32 S | 160 12 E |
| Guadalupe, Isla de (island) | Mexico | 29 11 N | 118 17 W |
| Guangzhou (city; also Canton) | China | 23 09 N | 113 21 E |
| Guantanamo Bay (US Naval Base) | Cuba | 20 00 N | 75 08 W |
| Guatemala (capital) | Guatemala | 14 38 N | 90 31 W |
| Guine-Bissau (local name for Guinea-Bissau) | Guinea-Bissau | 12 00 N | 15 00 W |
| Guinea Ecuatorial (local name for Equatorial Guinea) | Equatorial Guinea | 2 00 N | 10 00 E |
| Guinea, Gulf of | Atlantic Ocean | 3 00 N | 2 30 E |
| Guinee (local name for Guinea) | Guinea | 11 00 N | 10 00 W |
| Gustavia (capital) | Saint Barthelemy | 17 53 N | 62 51 W |
| Guyane Francaise (local name for French Guiana) | French Guiana | 4 00 N | 53 00 W |
| Ha'apai Group (island group) | Tonga | 19 42 S | 174 29 W |
| Habomai Islands | Russia (de facto) | 43 30 N | 146 10 E |
| Hadhramaut (region) | Yemen | 15 00 N | 50 00 E |
| Hagatna (capital; formerly Agana) | Guam | 13 28 N | 144 45 E |
| Hague, The (seat of government) | Netherlands | 52 05 N | 4 18 E |