| Wudalianchi | |
| Settlement Type: | County-level city |
| Pushpin Map: | China Heilongjiang |
| Pushpin Map Caption: | Location in Heilongjiang |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Heilongjiang |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Heihe |
| Area Total Km2: | 8,745.01 |
| Population As Of: | 2020 |
| Population Total: | 243,283 |
| Population Density Km2: | auto |
| Timezone: | China Standard |
| Utc Offset: | +8 |
| Coordinates: | 48.75°N 136°W |
| Postal Code Type: | Postal code |
| Postal Code: | 164100 |
| Area Code: | 0456 |
| Blank Name: | Climate |
| Blank Info: | Dwb |
Wudalianchi, formerly Dedu County (Chinese: 德都县), is a county-level city in Heilongjiang province, Northeast China, under the jurisdiction of the prefecture-level city of Heihe. The city is served by Wudalianchi Dedu Airport.
The city's name literal means "five great joint ponds", referring to a set of interconnected volcanogenic lakes formed after the eruption of the Laoheishan (Chinese: 老黑山, means "Old Black Mountain") and Huoshaoshan (Chinese: 火烧山, means "Fire Burn Mountain") volcanoes in 1720–21.[1] [2] The city's territory incorporates part of a volcanic field, which contains a APGN- and UNESCO-listed geopark.
Wudalianchi City is divided into 1 subdistrict, 7 towns and 4 townships.[3]
The population of the district was in 1999.[4]