| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Hyeon-U | hyun-oo | Korean | ||
| Hyginos | - | Ancient Greek | ||
| Hyginus | - | Ancient Greek (Latinized) | ||
| Hypatia | - | Ancient Greek | ||
| Hypatos | - | Ancient Greek | ||
| Hyun | hyun | Korean | ||
| Hyun-Joo | hyun-joo | Korean | ||
| Hyun-Jung | hyun-jung | Korean | ||
| Hyun-Woo | hyun-oo | Korean | ||
| I&Eth;Unn | - | Norse Mythology, Ancient Scandinavian | ||
| Iacomus | - | Late Roman | ||
| Iacopo | - | Italian | ||
| Iago | ee-A-gaw (Welsh, Galician), ee-AH-go (English) | Welsh, Galician, Portuguese | ||
| Iah | - | Egyptian Mythology | ||
| Iahmesu | - | Ancient Egyptian |