| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Intira | - | Thai | ||
| Inzhu | - | Kazakh | ||
| Ioab | - | Biblical Latin, Biblical Greek | ||
| Ioachim | - | Judeo-Christian Legend | ||
| Ioakeim | - | Judeo-Christian Legend | ||
| Ioan | - | Romanian, Welsh, Bulgarian | ||
| Ioana | - | Romanian, Bulgarian | ||
| Ioane | - | Georgian (Archaic) | ||
| Ioann | - | Russian | ||
| Ioanna | - | Greek, Biblical Greek | ||
| Ioannes | - | Biblical Greek | ||
| Ioannu | - | Old Church Slavic | ||
| Iob | - | Biblical Latin, Biblical Greek | ||
| Iodocus | - | Ancient Celtic (Latinized) | ||
| Ioel | - | Biblical Greek |