Kaihua County (simplified Chinese: 开化县; traditional Chinese: 開化縣; pinyin: Kāihuà Xiàn) is a county under the jurisdiction of Quzhou city in Zhejiang Province of the People's Republic of China.
Gutianshan National Nature Reserve is located within Kaihua County.
Towns: Chengguan, Huabu, Majin, Chihuai, Cuntou, Tongcun, Yanglin, Suzhuang, and Qixi.
Rural villages: Yinkeng, Linshan, Zhongcun, Jincun, Zhangwan, Changjiang, Hetian, Tangwu, and Daxibian.
Qianjiangyuan National Forest Park is a famous scenic spot in the county.