was the 2nd daimyà  of Mutsuura Domain in southern Musashi Province, Honshà «, Japan (modern-day Kanazawa-ku, Yokohama, Kanagawa prefecture) and 5th head of the Yonekura clan. His courtesy title was Tango-no-kami.
Yonekura Satonari was the eldest son of Yonekura Tadasuke, the 1st daimyà  of Mutsuura Domain. He succeeded to the head of the Yonekura clan and as daimyà  of Mutsuura Domain at the age of two, on the death of his father in 1735. In fear that the domain would be suppressed, his retainers reported SatonariâÂÂs age to be nine years old to the shogunate inspectors. This deception was soon discovered, and the retainers were punished. Due to his young age, the Tokugawa shogunate appointed Yanagisawa Yoshikira, daimyà  of Koriyama Domain in Yamato province to be his guardian. He was received in a formal audience by Shà Âgun Tokugawa Ieshige in March 1746, but fell ill and died only a few days later.
Yonekura Satonari had no heirs. His grave is at the clan temple of Hase-dera in Shibuya, Tokyo.