Kichizaemon RAKU is a name inherited from generation to generation by the leader of the Raku family of chawanshi (tea bowl maker) who makes Raku-yaki ware, which is one of the Senke jissoku (Senke's ten designated craftsmen families).
樂吉左衛門（らくきちざえもん）は、千家十職の一つ、楽焼の茶碗を作る茶碗師の樂家が代々襲名している名称である。