Satake Yoshiatsu (佐竹 義敦, November 24, 1748 – July 6, 1785) was the 8th daimyō of Kubota Domain in Dewa Province, Japan (modern-day Akita Prefecture), and then 26th hereditary chieftain of the Satake clan.

He was also founder of the Akita ranga school of Japanese painting and is more commonly known by his pen name, Satake Shozan (佐竹 曙山).

He was received in formal audience by Shogun Tokugawa Ieharu in 1763 and made his first visit to his domain in 1765.

The domain had been devastated by years of crop failures, peasant uprisings, plots among his retainers and fiscal mismanagement by his predecessors.

He was also a student of rangaku (Dutch studies) scholar Hiraga Gennai, whom he had invited to Akita to advise him on management of the domain's copper mines (Akita was the primary source of copper in the Japanese archipelago during this period).