Hai Bà Trưng (Trung Sisters District) is one of the four original urban districts (qua­n) of Hanoi, the capital city of Vietnam. The district currently has 18 wards, covering atotal area of 10.26 square kilometers. It is bordered by Long Bien district, Dong Da district, Thanh Xuan district, Hoang Mai district, Hoan Kiem district. As of 2019, there were 303,586 people residing in the district.