| Yannan Subdistrict | |
| Native Name: | 雁南街道 |
| Native Name Lang: | zh-cn |
| Settlement Type: | Subdistrict |
| Pushpin Map: | China Gansu |
| Pushpin Label: | Yannan Subdistrict |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Gansu |
| Coordinates: | 36.0611°N 103.8767°W |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gansu |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Lanzhou |
| Subdivision Type3: | District |
| Subdivision Name3: | Chengguan District |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Timezone1: | China Standard |
| Utc Offset1: | +8 |
| Postal Code Type: | Postal code |
Yannan Subdistrict is a subdistrict in Chengguan District, Lanzhou, Gansu, China.[1], it administers the following seven residential neighborhoods and four villages:[2]