59%RatingSave Gender Masculine Usage Swedish (Rare), Norwegian (Rare) Pronounced Pron. FRIT-shawf(Swedish) [key·IPA] Meaning & History From the Old Norse name Friðþjófr meaning "thief of peace", derived from the elements friðr "peace" and þjófr "thief". Related NamesFamily Tree·Details VariantsFritiof(Swedish) Fridtjof(Norwegian) Other Languages & CulturesFriðþjófr(Old Norse) Categories crime, How to Train Your Dragon characters, peace, rare Norwegian, rare Swedish