word | | Nationality |
| 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 |
| Guyanese | Guyana | noun: Guyanese (singular and plural) adjective: Guyanese |
| Haitian | Haiti | noun: Haitian(s) adjective: Haitian |
| Helenian | Saint Helena | noun: Saint Helenian(s) adjective: Saint Helenian note: referred to locally as "Saints" |
| Herzegovinian | Bosnia and Herzegovina | noun: Bosnian(s), Herzegovinian(s) adjective: Bosnian, Herzegovinian |
| Honduran | Honduras | noun: Honduran(s) adjective: Honduran |
| Hong | Hong Kong | noun: Chinese/Hong Konger adjective: Chinese/Hong Kong |
| Hungarian | Hungary | noun: Hungarian(s) adjective: Hungarian |
| Icelander | Iceland | noun: Icelander(s) adjective: Icelandic |
| Icelandic | Iceland | noun: Icelander(s) adjective: Icelandic |
| Indian | India | noun: Indian(s) adjective: Indian |
| Indonesian | Indonesia | noun: Indonesian(s) adjective: Indonesian |
| Iranian | Iran | noun: Iranian(s) adjective: Iranian |
| Iraqi | Iraq | noun: Iraqi(s) adjective: Iraqi |