| Name | Other Name | Family | Nativ Name | ISO6391 Code | ISO6392T Code | ISO6392B Code | ISO6393 Code | Notes |
|---|---|---|---|---|---|---|---|---|
| Haitian | Haitian Creole | Creole | Kreyòl ayisyen | ht | hat | hat | hat | |
| Hausa | Afro-Asiatic | (Hausa) هَوُسَ | ha | hau | hau | hau | ||
| Hebrew (modern) | Afro-Asiatic | עברית | he | heb | heb | heb | Changed in 1989 from original ISO 639:1988; iw | |
| Herero | Niger–Congo | Otjiherero | hz | her | her | her | ||
| Hindi | Indo-European | हिन्दी; हिंदी | hi | hin | hin | hin | ||
| Hiri Motu | Austronesian | Hiri Motu | ho | hmo | hmo | hmo | ||
| Hungarian | Uralic | magyar | hu | hun | hun | hun | ||
| Icelandic | Indo-European | Íslenska | is | isl | ice | isl | ||
| Ido | Constructed | Ido | io | ido | ido | ido | constructed by De Beaufront; 1907; as variation of Esperanto | |
| Igbo | Niger–Congo | Asụsụ Igbo | ig | ibo | ibo | ibo |