| Postal Code: | 730900 |
| Area Total Km2: | 329 |
| Area Urban Km2: | 13.48 |
| Native Name: | 郭城驿镇 |
| Population Total: | 34,076 |
| Coordinates: | 36.2298°N 104.8857°W |
| Settlement Type: | Town |
| Pushpin Map: | Gansu |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gansu |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Baiyin |
| Subdivision Type3: | County |
| Subdivision Name3: | Huining |
Guochengyi is a town of Huining County, Gansu, China.[1] It consists of 11 administrative villages and 59 natural villages.[2]
Just west of the town are ruins of a Jin dynasty (1115–1234) town, known historically as Huizhou (会州), but known today as Guohama (郭虾蟆), named after general Guo Hama [3] Towards the end of the Long March in 1936, PLA troops were stations just north of the town for 50 days.
The town has significant watermelon farms.