| Hải Lăng District | |
| Settlement Type: | District |
| Native Name: | Huyện Hải Lăng |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | North Central Coast |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quảng Trị |
| Seat Type: | Capital |
| Seat: | Diên Sanh |
| Unit Pref: | Imperial |
| Area Total Km2: | 491 |
| Population As Of: | 2003 |
| Population Total: | 100,854 |
| Timezone: | ICT |
| Utc Offset: | +07:00 |
Hải Lăng is a rural district of Quảng Trị province in the North Central Coast region of Vietnam. As of 2003 the district had a population of 100,854.[1] The district covers an area of 491 km². The district capital lies at Diên Sanh.[1]