| Yakiv | | - | Ukrainian | |
| Yana | | - | Bulgarian, Russian, Ukrainian | |
| Yaroslav | | yah-rah-SLAHF (Russian) | Russian, Ukrainian, Medieval Slavic | |
| Yaroslava | | yah-rah-SLAH-vah (Russian) | Russian, Ukrainian, Medieval Slavic | |
| Yelyzaveta | | - | Ukrainian | |
| Yevgen | | - | Ukrainian | |
| Yevhen | | - | Ukrainian | |
| Yevheniy | | - | Ukrainian | |
| Yevheniya | | - | Ukrainian | |
| Yosyp | | - | Ukrainian | |
| Yulia | | YOO-lee-yah (Russian) | Russian, Ukrainian | |
| Yuliya | | YOO-lee-yah (Russian) | Russian, Ukrainian, Bulgarian | |
| Yura | | - | Russian, Ukrainian | |
| Yuri (1) | | YOO-ree (Russian) | Russian, Ukrainian | |
| Yuriy | | YOO-ree (Russian) | Russian, Ukrainian | |