| Gangkou | |
| Postal Code Type: | Postal code |
| Settlement Type: | District |
| Pushpin Map: | China Guangxi |
| Pushpin Map Caption: | Location of the seat in Guangxi |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Autonomous region |
| Subdivision Name1: | Guangxi |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Fangchenggang |
| Seat Type: | District seat |
| Seat: | Yuzhouping Subdistrict |
| Area Total Km2: | 370 |
| Population Total: | 244280 |
| Population As Of: | 2020 census |
| Population Density Km2: | auto |
| Population Footnotes: | [1] |
| Coordinates: | 21.6461°N 108.375°W |
| Timezone: | China Standard |
| Utc Offset: | +8 |
Gangkou (; Zhuang; Chuang: Gangzgouj) is a district of the city of Fangchenggang, Guangxi, China.
Gangkou District is divided into 4 subdistricts and 2 towns:[2]