Yonekura Masakata (米倉昌賢, July 21, 1758 – August 5, 1798) was the 4th daimyō of Mutsuura Domain in southern Musashi Province, Honshū, Japan (modern-day Kanazawa-ku, Yokohama, Kanagawa prefecture) and 7th head of the Yonekura clan.
He was appointed heir in 1777 and succeeded his father in December 1785.
As daimyō, he was assigned to several ceremonial postings as guard of various gates to Edo Castle.
However, in 1793 he resigned from his posts due to illness, but retained the position of daimyō.
His grave is at the temple of Hase-dera in Shibuya, Tokyo.