| Hai'an | |
| Native Name: | 海安镇 |
| Other Name: | Hoion |
| Native Name Lang: | zh-cn |
| Settlement Type: | Town |
| Pushpin Map: | China Guangdong |
| Pushpin Map Caption: | Location in Guangdong |
| Coordinates: | 20.2711°N 110.2269°W |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Guangdong |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Zhanjiang |
| Subdivision Type3: | County |
| Subdivision Name3: | Xuwen |
| Unit Pref: | Metric |
| Elevation M: | 11 |
| Elevation Ft: | 36 |
| Population Density Km2: | auto |
| Timezone1: | China Standard |
| Utc Offset1: | +8 |
| Postal Code Type: | Postal code |
| Area Code: | 0759 |
| Showflag: | st |
| S: | 海安 |
| P: | Hǎi'ān |
| Gr: | Haian |
| Bpmf: | ㄏㄞㄢ |
| L: | "Safe Sea" |
Hai'an is a town in Xuwen County, Guangdong province,[1] situated at the southern extremity of the Leizhou Peninsula as well as geographic mainland China, facing Haikou on Hainan Island, 29km (18miles) away, directly across the Qiongzhou Strait. It is also the southern terminus of China National Highway 207., it has 2 residential communities (Chinese: 社区) and 5 villages under its administration.[2]