Iōzan Moriemon

was a Japanese sumo wrestler from Monou District, Mutsu Province (now Ishinomaki, Miyagi Prefecture). His highest rank was ōzeki. He is the seventh wrestler from Miyagi Prefecture to have been promoted to this rank and the first since Hidenoyama in 1841, 15 years earlier. He is also the last wrestler to hold that title until the promotion of Ōtohira in 1893, 37 years later.

Career Iōzan began his career by joining Isenoumi stable, a stable famous for having produced yokozuna Tanikaze and ōzeki Raiden and Kashiwado. He first wrestled in November 1839 under the shikona, or ring name, to evoke the dominant Tanikaze who bore this ring name. In 1846 he reached the makuuchi division, changing his shikona soon after to . He received the support of the Sendai Domain, now fighting under the protection of this powerful patron. During the same year he was promoted to komusubi, making his san'yaku debut. A popular tale says that he was later traded to the Inaba clan in exchange for uguisu, a highly prized and popular bird in Edo.

Iōzan was promoted to ōzeki in November 1856, but could only maintain his rank for four tournaments and was demoted back to sekiwake in 1859. He retired in February 1860.

He is said to be an exceptionally heavy drinker, always under the influence of alcohol when entering the ring.

Top division record The actual time the tournaments were held during the year in this period often varied. Championships for the best record in a tournament were not recognized or awarded before the 1909 summer tournament and the above championships that are labelled "unofficial" are historically conferred. For more information see yūshō.