Yohji Yamamoto (山本 耀司, Yamamoto Yōji, born 1943) is a Japanese fashion designer based in Tokyo and Paris. Considered a master tailor alongside those such as Madeleine Vionnet, he is known for his avant-garde tailoring featuring Japanese design aesthetics.

Yamamoto has won notable awards for his contributions to fashion, including the Chevalier/Officier/Commandeur of Ordre des Arts et des Lettres, Medal of Honor with Purple Ribbon, the Ordre national du Mérite, the Royal Designer for Industry and the Master of Design award by Fashion Group International.