Hải Hậu District
（重定向自Hai Hau）
![](/Images/godic/202501/16/VietnamRedRiverDeltamap5122.png")
Hải Hậu is a rural district of Nam Định Province in the Red River Delta region of Vietnam. As of 2003 the district had a population of 285,298. The district covers an area of 227 km². The district capital lies at Yên Định.