| Cangwu County | |
| Other Name: | Tsangwu |
| Postal Code Type: | Postal code |
| Settlement Type: | County |
| Pushpin Map: | China Guangxi |
| Pushpin Label: | Cangwu |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location of the seat in Guangxi |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Autonomous region |
| Subdivision Name1: | Guangxi |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Wuzhou |
| Seat Type: | County seat |
| Seat: | Shiqiao |
| Area Total Km2: | 2782 |
| Population Density Km2: | auto |
| Coordinates: | 23.845°N 111.544°W |
| Timezone: | China Standard |
| Utc Offset: | +8 |
Cangwu County (; Zhuang: Zhuang; Chuang: Canghvuz Yen) is a county in eastern Guangxi Zhuang Autonomous Region, China, bordering Guangdong province to the east. It is under the administration of Wuzhou city.
Cangwu County is divided into 9 towns:[1]