| Country: | CHN |
| Type: | Expwy |
| Route: | 78 |
| Alternate Name: | Shankun Expressway 汕昆高速公路 |
| Length Km: | 1882 |
| Length Notes: | Length when complete. |
| Map: | G78 map.svg |
| Length Ref: | [1] |
| Direction A: | East |
| Terminus A: | G15 Shenyang–Haikou Expressway, Shantou, Guangdong |
| Direction B: | West |
| Terminus B: | Shihuguan Interchange, 2nd Ring Road, Kunming, Yunnan |
| Previous Type: | Expwy |
| Previous Route: | 7612 |
| Next Type: | Expwy |
| Next Route: | 80 |
| Next Dab: | Guangzhou–Kunming Expressway |
The Shantou–Kunming Expressway, designated as G78 and commonly referred to as the Shankun Expressway is an expressway in China that connects the cities of Shantou, Guangdong, and Kunming, Yunnan. When complete, it will be 1882km (1,169miles) in length.
In Guangdong, the expressway is complete only from Shantou to Longchuan County. Sections from Longchuan County to Huaiji County is under construction.
The expressway is complete from Pingle County to the Guangdong border and from Liuzhou to Yizhou.
The entire portion in Guizhou is under construction.
The expressway is complete only from Shilin Yi Autonomous County to Kunming.