| Country: | CHN |
| Type: | Expwy |
| Route: | 12 |
| Alternate Name: | Hunwu Expressway 珲乌高速公路 |
| Length Km: | 926.22 |
| Length Ref: | [1] |
| Direction A: | East |
| Terminus A: | in Hunchun, Jilin |
| Junction: | in Changchun, Jilin in Songyuan, Jilin |
| Direction B: | West |
| Terminus B: | in Ulanhot, Inner Mongolia |
| Previous Type: | Expwy |
| Previous Route: | 1131 |
| Previous Dab: | Dandong–Fuxin Expressway |
| Next Type: | Expwy |
| Next Route: | 1211 |
| Next Dab: | Jilin Ring Expressway |
| Map: | G12 map.svg |
The Hunchun–Ulanhot Expressway, designated as G12 and commonly referred to as the Hunwu Expressway is a 926.22adj=midNaNadj=mid in the People's Republic of China that connects the cities of Hunchun, Jilin and Ulanhot, Inner Mongolia. The route parallels much of China National Highway 302.