Kiyohara no Motosuke

was a Heian period waka poet and Japanese nobleman. His daughter was the Heian poet and author Sei Shōnagon, famous today for writing The Pillow Book. He is designated a member of the Thirty-six Poetry Immortals, and one of his poems is included in the famous Ogura Hyakunin Isshu. His court career included terms as governor of Kawachi Province and Higo Province.

As one of the , Kiyohara no Motosuke assisted in the compilation of the Gosen Wakashū. This group also compiled readings for texts from the Man'yōshū.

His poems are included in several official poetry anthologies, including the Shūi Wakashū. A personal collection known as the also remains.