word | | Nationality |
| Gambian | Gambia, The | noun: Gambian(s) adjective: Gambian |
| Georgian | Georgia | noun: Georgian(s) adjective: Georgian |
| German | Germany | noun: German(s) adjective: German |
| Ghanaian | Ghana | noun: Ghanaian(s) adjective: Ghanaian |
| Gibraltar | Gibraltar | noun: Gibraltarian(s) adjective: Gibraltar |
| Gibraltarian | Gibraltar | noun: Gibraltarian(s) adjective: Gibraltar |
| Greek | Greece | noun: Greek(s) adjective: Greek |
| Greenlander | Greenland | noun: Greenlander(s) adjective: Greenlandic |
| Greenlandic | Greenland | noun: Greenlander(s) adjective: Greenlandic |
| Grenadian | Grenada | noun: Grenadian(s) adjective: Grenadian |
| Guamanian | Guam | noun: Guamanian(s) (US citizens) adjective: Guamanian |
| Guatemalan | Guatemala | noun: Guatemalan(s) adjective: Guatemalan |
| Guinean | Equatorial Guinea | noun: Equatorial Guinean(s) or Equatoguinean(s) adjective: Equatorial Guinean or Equatoguinean |
| Guinean | Guinea | noun: Guinean(s) adjective: Guinean |
| Guinean | Guinea-Bissau | noun: Guinean(s) adjective: Guinean |
| Guinean | Papua New Guinea | noun: Papua New Guinean(s) adjective: Papua New Guinean |