As a surname viaUrduخان(xān),Persianخان (xân), among others. As a title, a proper noun form ofkhan.
Khan
FromOld Frenchchan, fromMedieval Latincanus,caanus, ofTurkic origin, fromOld Turkicxān(“Central Asian khan”), probably ultimately of non-Turkic (Central Asian) origin.[1]
Khan m (strong,genitiveKhans,pluralKhane)