| G | ||
| Gaborone, Botswana (GBE) | Ghat, Libya (GHT) | Granada, Spain (GRX) |
| Gafsa, Tunisia (GAF) | Gibraltar, Gibraltar (GIB) | Grand Cayman, Cayman Islands (GCM) |
| Gagnoa, Cote D'Ivoire (GGN) | Gilgit, Pakistan (GIL) | Grand Turk Island, Turks and Caicos Islands (GDT) |
| Galapagos, Ecuador (GPS) | Gisborne, New Zealand (GIS) | Graz, Austria (GRZ) |
| Gallivare, Sweden (GEV) | Gizan, Saudi Arabia (GIZ) | Grenada, Grenada, (GND) |
| Galway, Ireland (GWY) | Gizo, Solomon Islands (GZO) | Grenoble, France (GNB) |
| Gamba, Gabon (GAX) | Gladstone, Australia (GLT) | Griffith, Australia (GFF) |
| Gambela, Ethiopia (GMB) | Glasgow, United Kingdom - Glasgow Int. (GLA) | Grimsey, Iceland (GRY) |
| Gan Island, Maldives (GAN) | Glasgow, United Kingdom - Prestwick (PIK) | Groennedal, Greenland (JGR) |
| Gangneung, South Korea (KAG) | Glen Innes, Australia (GLI) | Groningen, Netherlands (GRQ) |
| Garachine, Panama (GHE) | Goa, India (GOI) | Groofe Eylandt, Australia (GTE) |
| Garaina, Papua New Guinea (GAR) | Goba, Ethiopia (GOB) | Guadalajara, Mexico (GDL) |
| Garasa, Papua New Guinea (GRL) | Gobernador Gregores, Argentina (GGS) | Guam (GUM) |
| Garden Point, Australia (GPN) | Gode/Iddidole, Ethopia (GDE) | Guanaja, Honduras (GJA) |
| Garoua, Cameroon (GOV) | Goiania, Brazil (GYN) | Guanajuato, Mexico (BJX) |
| Gassim, Saudi Arabia (ELQ) | Gold Coast, QL, Australia (OOL) | Guangzhou, China (CAN) |
| Gaua, Vanuatu (ZGU) | Golfito, Costa Rica (GLF) | Guantanamo, Cuba (GAO) |
| Gawahati, India (GAU) | Golmud, China (GOQ) | Guatemala City, Guatemala (GUA) |
| Gaza City, Occupied Palestinian Territory (GZA) | Gonalia, Papua New Guinea (GOE) | Guayaquil, Ecuador (GYE) |
| Gaziatep, Turkey (GZT) | Gondari, Ethiopia (GDQ) | Guayaramerin, Bolivia (GYA) |
| Gdansk, Poland (GDN) | Gore, Ethiopia (GOR) | Guaymas, Mexico (GYM) |
| Gebe, Indonesia (GEB) | Goroka, Papua New Guinea (GKA) | Guernsey, United Kingdom (GCI) |
| Gelendzik, Russia (GDZ) | Gorontalo, Indonesia (GTO) | Guerrero Negro, Mexico (GUB) |
| Geneina, Sudan (EGN) | Gothenburg, Sweden - Landvetter (GOT) | Guilin, China (KWL) |
| General Santos, Philippines (GES) | Gothenburg, Sweden - Saeve (GSE) | Guiria, Venezuela (GUI) |
| Geneva, Switzerland (GVA) | Goulburn Island, Australia (GBL) | Gulu, Uganda (ULU) |
| Genoa, Italy (GOA) | Goundam, Mali (GUD) | Gulyang, China (KWE) |
| George Town, Bahamas (GGT) | Gove, Australia (GOV) | Gunsan, South Korea (KUV) |
| George, South Africa (GRJ) | Governors Harbour, Bahamas (GHB) | Gurayat, Saudi Arabia (URY) |
| Georgetown, Guyana (GEO) | Governador Valadares, Brazil (GVR) | Gwadar, Pakistan (GWD) |
| Geraldton, Australia, (GET) | Goya, CR, Argentina (OYA) | Gwangju, South Korea (KWJ) |
| Gerona, Spain (GRO) | Gozo, Malta (GZM) | Gwalior, India (GWL) |
| Ghadames, Libya (LTD) | Graciosa Island, Portugal (GRW) | Gyandzha, Azerbaijan (KVD) |
| Ghardala, Algeria (GHA) | Grafton, Australia (GFN) | Gyourmri, Armenia (LWN) |