| Iuvenalis | | - | Ancient Roman | |
| Iva (1) | | - | Bulgarian, Serbian, Croatian, Macedonian | |
| Iva (2) | | - | Czech, Slovak, Slovene | |
| Iva (3) | | - | Czech | |
| Ivah | | - | Biblical | |
| Ivan | | ee-VAHN (Russian, Ukrainian), IE-vən (English) | Russian, Bulgarian, Ukrainian, Belarusian, Serbian, Croatian, Czech, Slovak, Macedonian, Slovene, En | |
| IvanČIca | | - | Croatian | |
| Ivana | | - | Czech, Slovak, Serbian, Croatian, Slovene, Bulgarian, Macedonian | |
| Ivanka | | - | Bulgarian, Czech, Slovak, Serbian, Croatian, Slovene | |
| Iveta | | - | Czech, Slovak | |
| Ivica | | - | Croatian, Serbian | |
| Ivka | | - | Croatian, Bulgarian, Slovak, Czech | |
| Ivo (1) | | EE-vo (German, Dutch, Italian), EE-fo (German), EE-voo (Portuguese) | German, Dutch, Italian, Portuguese, Czech, Ancient Germanic | |
| Ivo (2) | | - | Bulgarian, Serbian, Croatian, Macedonian | |
| Ivona | | - | Czech, Slovak, Croatian, Macedonian | |