国东市是位于日本大分县东北部国东半岛东部的一个城市，于2006年3月31日，由东国东郡国见町、国东町、武藏町及安岐町合并而成。

Kunisaki(国東市,Kunisaki-shi) is a city located in Ōita Prefecture, Kyushu, Japan.

The modern city of Kunisaki was founded on March 31, 2006, from the merger of the former town of Kunisaki, absorbing the towns of Aki, Kunimi and Musashi (all from Higashikunisaki District).