was a Japanese samurai and Karà  from Tosa domain. Gotà  Shà Âjirà  was his nephew-in-law.
In 1853, Toyo was appointed by the head of Tosa domain Yamanouchi Toyoshige to reform and modernize the domain.
He was assassinated on 6 May 1862 by three members of Tosa Kinnoto, a local political reform party.