| Duyên Hải district | |
| Settlement Type: | District |
| Native Name: | Huyện Duyên Hải |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Mekong Delta |
| Subdivision Type2: | Province |
| Subdivision Name2: | Trà Vinh |
| Seat Type: | Capital |
| Seat: | Long Thành |
| Unit Pref: | Imperial |
| Area Total Km2: | 300.47 |
| Population As Of: | 2018 |
| Population Total: | 84,925 |
| Timezone: | UTC + 7 |
| Utc Offset: | +7 |
Duyên Hải is a rural district (huyện) of Trà Vinh province in the Mekong Delta region of Vietnam. As of 2015 the district had a population of 82,393.[1] The district covers an area of 300.47 km². The district capital lies at Long Thành town.[1] The town of Duyên Hải was separated from the district in 2015.