The Battle of Makunohira (Japanese: 幕野平の戦い, Hepburn: Maku Nodai notatakai) was a battle fought between Aso Korenori and his adopted brother, Aso Koretoshi, in 1484 resulting in a major victory for the former. The battle resulted in the reunification of the previously divided Aso Clan.
The battle was fought upon a large plateau in Kumamoto Prefecture, near Yamato-cho. Korenori, supported by Sagara Tametsugu, fought against the rebellious Koretoshi, himself supported by Kikuchi Shigetomo. The result was a decisive victory for Korenori and a subsequent decline for the Kikuchi.