| Dejiang County | |
| Native Name: | 德江县 |
| Native Name Lang: | zh-Hans |
| Settlement Type: | County |
| Pushpin Map: | Guizhou#Southwest China |
| Pushpin Label: | Dejiang |
| Pushpin Map Caption: | Location of the seat in Guizhou |
| Coor Pinpoint: | Dejiang County government |
| Coordinates: | 28.264°N 108.1197°W |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Guizhou |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Tongren |
| Seat Type: | County seat |
| Seat: | Qinglong |
| Area Total Km2: | 2,071.9 |
| Population As Of: | 2010 |
| Population Density Km2: | auto |
| Population Total: | 367,908 |
| Timezone: | China Standard |
| Utc Offset: | +8 |
| Postal Code Type: | Postal code |
| Postal Code: | 565200 |
Dejiang County is a county under the administration of the prefecture-level city of Tongren, in the northeast of Guizhou Province, China. The government is located in Qinglong.
Dejiang County is divided into 3 subdistricts, 11 towns and 8 ethnic townships:[1]