| Sui'an | |
| Native Name: | 绥安镇 |
| Native Name Lang: | zh-cn |
| Settlement Type: | Town |
| Pushpin Map: | China Fujian |
| Pushpin Map Caption: | Location in Fujian |
| Coordinates: | 24.1178°N 117.6167°W |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Fujian |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Zhangzhou |
| Subdivision Type3: | County |
| Subdivision Name3: | Zhangpu |
| Unit Pref: | Metric |
| Elevation M: | 11 |
| Elevation Ft: | 36 |
| Population Density Km2: | auto |
| Timezone1: | China Standard |
| Utc Offset1: | +8 |
| Postal Code Type: | Postal code |
| Postal Code: | 363200 |
| Area Code: | 0596 |
Sui'an is a town in and the county seat of Zhangpu County, in far southern Fujian province, China. It is the seat of Zhangpu's government, Lower People's Court and local branches of CPC and PSB.
Zhangpu Railway Station on the Xiamen–Shenzhen Railway is a few kilometers to the west of town.
The county town is reached by China National Highway 324, and by the provincial-govt-maintained road coming down from the Pinghe county-town to Jiuzhen harbour.