Suixi County, Guangdong
Suixi 
    遂溪县 Suikai  | |
|---|---|
| Coordinates: 21°22′38″N 110°15′00″E / 21.3772°N 110.2501°E | |
| Country | People's Republic of China | 
| Province | Guangdong | 
| Prefecture-level city | Zhanjiang | 
| Area | |
 • Total  | 2,144 km2 (828 sq mi) | 
| Population  (2020)  | |
 • Total  | 824,608 | 
| • Density | 380/km2 (1,000/sq mi) | 
| Time zone | UTC+8 (China Standard) | 
Suixi County (postal: Suikai; Chinese: 遂溪; pinyin: Suìxī; Jyutping: seoi6kai1; Suixi Yue: [ɬui22 kʰɐi55]) is a county in the southwest of Guangdong province, China. It is under the administration of the prefecture-level city of Zhanjiang and is located at the northern end of the Leizhou Peninsula, bordering the Gulf of Tonkin to the west.