Lương Sơn Mươ̒ng: Hwiḙ̂n Lương Xơn, Kinh: Huyện Lương Sơn) is a former rural district of Hòa Bình province in the Northwest region of V…Lương Sơn Mươ̒ng: Hwiḙ̂n Lương Xơn, Kinh: Huyện Lương Sơn) is a former rural district of Hòa Bình province in the Northwest region of Vietnam, around 40 km from Hanoi. As of 2019, the district had a population of 99,457, with Muong people accounting for about 70% of the population. The district covers an area of 369.85 km². The district capital lies at Lương Sơn.