| Vladimir | | vlah-DEE-meer (Russian), VLAH-dee-meer (Croatian) | Russian, Serbian, Croatian, Bulgarian, Macedonian, Slovene, Medieval Slavic | |
| Vladislav | | vlah-dee-SLAHF (Russian) | Russian, Czech, Slovak, Slovene, Bulgarian, Serbian, Croatian, Medieval Slavic | |
| Vlado | | - | Croatian, Serbian, Slovak, Slovene, Bulgarian, Macedonian | |
| Yakov | | YAH-kahf (Russian) | Hebrew, Russian, Bulgarian | |
| Yana | | - | Bulgarian, Russian, Ukrainian | |
| Yanka | | - | Bulgarian | |
| Yanko | | - | Bulgarian | |
| Yasen | | - | Bulgarian | |
| Yavor | | - | Bulgarian | |
| Yoan | | - | Bulgarian | |
| Yoana | | - | Bulgarian | |
| Yordan | | - | Bulgarian | |
| Yordana | | - | Bulgarian | |
| Yordanka | | - | Bulgarian | |
| Yosif | | - | Bulgarian | |