Haryū Morinobu served as a bushō from the Sengoku to early Edo periods.
Morinobu was the great-grandson of Ashina Morishige, the fourteenth head of the Ashina clan. The Haryū were a cadet family of the Ashina clan primarily engaged in diplomatic affairs. Morinobu performed important roles under Ashina Moriuji but engaged in a power struggle with Kanagami Moriharu who gained prominence in the era of Moriuji. This led to a splintering of the Ashina clan.
In 1589, after Date Masamune decimated the Ashina clan, Morinobu served Masamune.
In 1625, Morinobu died at the age of seventy-three.