| Daxu | |
| Native Name: | 大许镇 |
| Native Name Lang: | zh-cn |
| Settlement Type: | Town |
| Pushpin Map: | China Jiangsu |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Jiangsu |
| Coordinates: | 34.2839°N 117.5553°W |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Jiangsu |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Xuzhou |
| Subdivision Type3: | District |
| Subdivision Name3: | Tongshan District |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Timezone1: | China Standard |
| Utc Offset1: | +8 |
| Postal Code Type: | Postal code |
Daxu is a town in Tongshan District, Xuzhou, Jiangsu Province, China.[1], it administers the following 23 villages:[2]