| Country | Location |
| Heard Island and McDonald Islands | islands in the Indian Ocean, about two-thirds of the way from Madagascar to Antarctica |
| Holy See (Vatican City) | Southern Europe, an enclave of Rome (Italy) |
| Honduras | Central America, bordering the Caribbean Sea, between Guatemala and Nicaragua and bordering the Gulf of Fonseca (North Pacific Ocean), between El Salvador and Nicaragua |
| Hong Kong | Eastern Asia, bordering the South China Sea and China |
| Hungary | Central Europe, northwest of Romania |
| Iceland | Northern Europe, island between the Greenland Sea and the North Atlantic Ocean, northwest of the United Kingdom |
| India | Southern Asia, bordering the Arabian Sea and the Bay of Bengal, between Burma and Pakistan |
| Indian Ocean | body of water between Africa, the Southern Ocean, Asia, and Australia |
| Indonesia | Southeastern Asia, archipelago between the Indian Ocean and the Pacific Ocean |
| Iran | Middle East, bordering the Gulf of Oman, the Persian Gulf, and the Caspian Sea, between Iraq and Pakistan |
| Iraq | Middle East, bordering the Persian Gulf, between Iran and Kuwait |