| Tongshan County | |
| Native Name: | 通山县 |
| Native Name Lang: | zh-Hans |
| Other Name: | Tungshan |
| Settlement Type: | County |
| Pushpin Map: | Hubei |
| Pushpin Label: | Tongshan |
| Pushpin Map Caption: | Location of the seat in Hubei |
| Coordinates: | 29.6064°N 114.4828°W |
| Coor Pinpoint: | Tongshan government |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Hubei |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Xianning |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Timezone1: | China Standard |
| Utc Offset1: | +8 |
Tongshan is a county of Xianning City, in the southeastern part of Hubei province, People's Republic of China, bordering Jiangxi to the south.
The county is located along Hubei's mountainous south-eastern border with Jiangxi. Its best known tourist attraction is the Jiugong Mountain National Park (Chinese: 九宫山风景区), located in the Jiugong Range, south of Jiugongshan Town.
The county is roughly coterminous with the upper part of the basin of the Fushui River, which flows eastward, into the neighboring Yangxin County, where it discharges into the Yangtze. A fairly large Fushui Reservoir (Fushui Shuiku) is formed on this river and its tributaries within Tongshan County by a dam that's actually built in Yangxin County, a bit downstream of the county line. The Fushui's tributaries also include a few minor reservoirs.
The county seat is in the town of Tongyang (Chinese: 通羊镇); as it is customary in China, this location is usually labeled on less-detailed maps simply as "Tongshan County" (Chinese: 通山县) or "Tongshan".
The county is served by China National Highway 106 (G106), which joins with G316 near the eastern tip of the county.
Xianning Nuclear Power Plant is under construction near Tongshan County's Dafan Town.
The county is divided into 8 towns, 4 townships and 1 other area:[1] [2]