The was a Japanese samurai clan originating in northern Japan, specifically Mutsu Province (the northeast coast of Honshū). A branch of the local Nanbu clan, the Tsugaru rose to power during the Azuchi-Momoyama period. It was on the winning side of the Battle of Sekigahara, and entered the Edo period as a family of lords (daimyo) ruling the Hirosaki Domain. A second branch of the family was later established, which ruled the Kuroishi Domain. The Tsugaru survived as a daimyo family until the Meiji Restoration, when Tsugaru Tsuguakira of Hirosaki and Tsugaru Tsugumichi of Kuroishi were relieved of office. Their extended family then became part of the new nobility in the Meiji era.