Meaning A girl's name of French origin, it means "Medieval male name adopted as a feminine name." Origin of Joscelyn French +-100%Zoom level changed to 1 Popular Middle Names Ellamarie, Jaylene Pronunciation 🔊 Listen Joscelyn Similar Names Joceline Jocelyne Josalynn Josilyn Joslin Jozlyn Macee Arletta Joss Demi-Lee Year by Year Popularity of Joscelyn