Meaning A boy's name of Norse origin, it means "A mythical dragon." Origin of Fafnir Norse , Scandinavian Popular Middle Names Pronunciation 🔊 Listen Fafnir Similar Names Eyvind Nagelfar Nidhogg Ake Alfgeir Andvaranaut Arnlaug Asbjom Asgard Beini Year by Year Popularity of Fafnir