Save Gender Masculine Usage Belarusian Scripts Вацлаў(Belarusian) Pronounced Pron. VATS-low [key·IPA] Other Forms FormsVatslaw, Vacłaŭ, Wacłaŭ Meaning & History Belarusian form of Václav, variant of native Viačaslaŭ inherited from Old Belarusian. Derived from Slavic element *vęťe meaning "more" combined with *slava meaning "fame, glory".