Cao Sơn
| Cao Sơn | |
|---|---|
| Commune and village | |
| Country |
 Vietnam |
| Province | Bắc Kạn Province |
| District | Bạch Thông District |
| Time zone | UTC+7 (UTC+7) |
Cao Sơn is a commune (xã) and village in Bạch Thông District, Bắc Kạn Province, in Vietnam.
Coordinates: 21°26′N 106°19′E / 21.433°N 106.317°E