Meaning A girl's name of Polish origin, it means "steadfast." Origin of Konstancja Polish , Slavic +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Konstancja Similar Names Marisabela Kaja Karin Kinga Klementyna Ksena Ksenia Oliwia Malwina Bozena Year by Year Popularity of Konstancja