| Phồn Xương | |
| Settlement Type: | Township (Class-5) |
| Pushpin Map: | Vietnam |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location in Vietnam |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Bắc Giang Province |
| Subdivision Type2: | District |
| Subdivision Name2: | Yên Thế |
| Unit Pref: | Imperial |
| Area Total Km2: | 8.55 |
| Population As Of: | 2019 |
| Population Total: | 8,436 |
| Population Density Km2: | 987 |
| Population Blank1 Title: | Ethnicities |
| Timezone: | UTC+7 |
| Utc Offset: | +7 |
| Coordinates: | 21.4572°N 106.1236°W |
Phồn Xương is a township (thị trấn) and capital of Yên Thế District, Bắc Giang Province, in northeastern Vietnam.[1] The township is known as the place where the Yên Thế Insurrection began.