Meaning A boy's name of Polish origin, it means "Victory." Origin of Wienczyslaw Polish , Slavic +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Wienczyslaw Similar Names Mikolai Wicus WiMor Wincent Mikolaj Milek Zygfryd Zygmunt Sergiusz Bendyk Year by Year Popularity of Wienczyslaw