Meaning A boy's name of Polish origin, it means "Polish form of Sergio 'attendant'." Origin of Sergiusz Polish , Slavic Popular Middle Names Pronunciation 🔊 Listen Sergiusz Similar Names Sergio Jeny Krzysztof Maksym Mikolai Frandszk Laiurenty Pawelek WiMor Wincent Year by Year Popularity of Sergiusz