| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Ignatia | - | Late Roman | ||
| Ignatius | ig-NAY-shəs (English) | Late Roman | ||
| Ignatiy | - | Russian | ||
| Ignatz | - | German | ||
| Ignazio | - | Italian | ||
| Igor | EE-gər (Russian), EE-gawr (Polish) | Russian, Polish, Slovene, Croatian, Serbian, Macedonian | ||
| Igraine | - | Arthurian Romance | ||
| Ihar | EE-khahr | Belarusian | ||
| Ihor | EE-hawr | Ukrainian | ||
| Ikaia | - | Hawaiian | ||
| Ikaika | - | Hawaiian | ||
| Ikenna | - | Western African, Igbo | ||
| Ila | - | Indian, Hindi | ||
| Ilari | EE-lah-ree (Finnish) | Russian, Finnish | ||
| Ilaria | - | Italian |