Tamura Muneyoshi

was a Japanese daimyō of Iwanuma Domain in Mutsu Province of early-Edo period Japan

Muneyoshi was the third son of Date Tadamune, the 2nd daimyō of Sendai Domain. His mother, Fusa, was a concubine and the daughter of Mitamura Matauemon. His childhood name was . From 1639, under his father's orders, he was raised by Suzuki Motonobu, a vassal of Sendai Domain, in Ōsaki, Shida District, as heir to the Suzuki clan.

The infant Date Tsunamura was made daimyō of Sendai under the guardianship of his uncles. In 1662, Muneyoshi transferred his seat to what is now the city of Iwanuma, Miyagi and officially became daimyō of Iwanuma Domain, a subsidiary domain of Sendai, based in what is now the city of Iwanuma, Miyagi. He received the courtesy title of Oki-no-kami in 1670. According to waka poetry written about him, Muneyoshi had a mild personality and was popular, in contrast to the events of the Date Sōdō.

The ten years during which Date Munekatsu and Tamura Muneyoshi ruled in place of the under-age Date Tsunamura were marked by violence and conflict in Sendai Domain. Events reached a climax in 1671 when Aki Muneshige, a powerful relative of the Date clan, complained to the shogunate of the mismanagement of the fief under Tsunamura and his uncles. In the ensuring Date Sōdō, Muneyoshi was relieved of his offices in 1671 and placed under house arrest. He was pardoned in 1672. In 1678, he died at the clan's Edo residence at the age of 42. He died at age 42, and his grave is at the clan mortuary temple of Tōzen-ji in Takanawa, Edo.