Meaning A girl's name of Polish origin, it means "fair, just." Origin of Justyna Polish , Slavic +-100%Zoom level changed to 1 Popular Middle Names Grace Pronunciation 🔊 Listen Justyna Similar Names Rhonwen Rhona Gwendolyn Afraa Adlaa Adlah Fiona Jasey Joasia Jaroslawa Year by Year Popularity of Justyna