Volodymyr (Ukrainian: Володи́мир, romanized: Volodýmyr, pronounced [woloˈdɪmɪr], Old East Slavic: Володимѣръ, romanized: Volodiměrŭ) is a Ukrainian given name of Old East Slavic origin. The related Ancient Slavic, such as Czech, Russian, Serbian, Croatian, etc. form of the name is Володимѣръ Volodiměr, which in other Slavic languages became Vladimir (from Church Slavonic: Владимѣръ, romanized: Vladiměr). Diminutives include Volodyk, Volodia, Lodgo and Vlodko. People named Volodymyr include: Volodymyr the Great (aka St. Volodymyr, Volodymyr I of Kyiv), Grand Prince of Kyiv.
https://en.wikipedia.org/wiki/Volodymyr