Vladimir: From the Old Slavic name *Voldiměrŭ, derived from the elements volděti meaning "to rule" and měrŭ meaning "great, famous". The second element has also been associated with mirŭ meaning "peace, world".

Stanislav: Derived from the Slavic element stati "stand, become" (inflected forms in stan-) combined with slava "glory"

Ludmila: "favour of the people" from the Slavic elements ľudŭ "people" and milŭ "gracious, dear"

Vitalik:  form of the Late Latin name Vitalis, which was derived from Latin vitalis meaning "of life, vital"