Mibu Domain

Mibu Domain (壬生藩, Mibu han^?) was a feudal domain under the Tokugawa shogunate of Edo period Japan, located in Tsuga District of Shimotsuke Province (modern-day ), Japan. It was centered on Mibu Castle in what is now part of the town of . Mibu was ruled through much of its history by a branch of the fudai Torii clan.

The Mibu clan, which had ruled this area since the Muromachi period was destroyed at the Battle of Odawara in 1590, and their lands came under the control of the Yuki clan. After the Battle of Sekigahara, Tokugawa Ieyasu assigned a 19,000 koku holding in this area to Hineno Yoshiaki, formerly of Takashima Domain in Shinano Province in 1602. Hineno was instrumental in the construction of the Nikkō Tōshō-gū complex, and was rewarded for his efforts in 1634 by a transfer to Funai Domain (20,000 koku).

Mibu was assigned to Abe Tadaaki, who has served as a Rōjū to Shogun Tokugawa Iemitsu, with revenues raised to 25,000 koku. He was reassigned in 1639 to Oishi Domain in Musashi Province.