was a powerful warlord who gained the hegemony in Chūgoku region, Japan starting as a vassal of the Rokkaku clan. He ruled the domains of Inaba, Hōki, Izumo, Iwami, Oki, Harima, Mimasaka, Bizen, Bitchū, Bingo, and Aki.
Tsunehisa was the eldest son of Amago Kiyosada. His childhood name was Matashiro (又四郎).