| Gucheng | |
| Official Name: | 古城镇 |
| Native Name: | 古城 |
| Settlement Type: | Town |
| Pushpin Map: | China Liaoning |
| Pushpin Map Caption: | Location within Liaoning province. |
| Pushpin Mapsize: | 250 |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Liaoning |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Benxi |
| Subdivision Type3: | County |
| Subdivision Name3: | Huanren County |
| Unit Pref: | Metric |
| Area Total Km2: | 314 |
| Elevation M: | 345 |
| Population Total: | 25700 |
| Population Density Km2: | auto |
| Timezone: | China Standard |
| Utc Offset: | +8 |
| Coordinates: | 41.4789°N 125.4669°W |
| Postal Code Type: | Postal code |
| Postal Code: | 117200 |
| Area Code: | 0414 |
Gucheng is a town of northern Huanren Manchu Autonomous County, eastern Liaoning province in Northeast China. It lies near the border with Jilin province, in a mountainous region of the province. Huanren County is located to the south, and the city of Tonghua in Jilin is to the northeast. China National Highway 201 (G201) passes through the area.