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