was the 3rd daimyà  of Kuroishi Domain in northern Mutsu Province, Honshà «, Japan (modern-day Aomori Prefecture). His courtesy title was Izumo-no-kami, and his Court rank was Junior Fifth Rank, Lower Grade.
Tsugaru Tsuguyasu was the 2nd son of Tsugaru Chikatari, the 1st daimyà  of Kuroishi Domain and was originally named Tsugaru Masatari . He became daimyà  in 1839, when his adoptive elder brother Tsugaru Yukitsugu was reassigned to take over the administration of Hirosaki Domain, changing his name to Tsugaru Tsuguyasu at that time.
Tsuguyasu inherited a domain stabilized by the reforms his brother had begun to implement, and had a stable reign through the difficult the political and agricultural crises of the Tenpà  era. He died in 1851 at a relatively young age. His grave is at the clan temple of Shinryà Â-in (a subsidiary of Kan'ei-ji) in Taità Â-ku, Tokyo.
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