Meaning A boy's name of Norse origin, it means "Brother of Isrod." Origin of Isleif Norse , Scandinavian +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Isleif Similar Names Isrod Armod Bjolf Geirrod Guttorm Jolgeir Lodmund Lyting Thorgrim Thrand Year by Year Popularity of Isleif