Yamaguchiya Tōbei (山口屋藤兵衛; fl. c. 1805 - 1895) was a Japanese published based in Bakurochō in Edo (now Nihonbashi, Tokyo). The firm, which was likely named after its founder and maintained his name after his death, was closely associated with the Utagawa School of ukiyo-e artists. In its later years, the firm alternated its name (using 荒川藤兵衛 or 荒川コマ) and began producing lithographs.