Meaning A boy's name of Norse origin, it means "A mythical giant killed by Thor." Origin of Rungnir Norse , Scandinavian +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Rungnir Similar Names Bergelmir Bolthor Im Surtr Thrym Tjasse Ymir Thialfi Thjalfi Custennin Year by Year Popularity of Rungnir