| Kaihua | |
| Other Name: | Kaihwa |
| Postal Code Type: | Postal code |
| Settlement Type: | County |
| Pushpin Map: | China Zhejiang |
| Pushpin Label: | Kaihua |
| Pushpin Map Caption: | Location of the seat in Zhejiang |
| Coordinates: | 29.1373°N 118.4154°W |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Zhejiang |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Quzhou |
| Area Total Km2: | 2224 |
| Population: | 340000 |
| Population As Of: | 2004 |
| Population Density Km2: | auto |
| Timezone: | China Standard |
| Utc Offset: | +8 |
Kaihua County is a county under the jurisdiction of Quzhou city in Zhejiang Province of the People's Republic of China. It is located in the westernmost portion of Zhejiang, and is the source of the Qiantang River. The district's total area is 2224 square kilometers, and its population is 340,000 people. The district's postal code is 324300. The district government is located at 54 Jiefang Street, in the town of Chengguan. Forests cover 79.2% of Kaihua County, making it a key county for forestry in Zhejiang and in China as a whole.
Gutianshan National Nature Reserve is located within Kaihua County.
The county administers nine towns and nine rural villages.
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.