Shimizu Muneharu, also known as Shimizu Chōzaemon, was a military commander during the Sengoku period. He served the Mōri clan (one of the powerful clans in Bitchu Province) as a retainer to Kobayakawa Takakage and took part in the expedition to unify the Chūgoku region. He was lord of Shimizu castle at Bitchu Province, and became the lord of the Bitchu Takamatsu Castle after he captured it in 1565. His father was Shimizu Munenori.