平順省
The La Ngà River () is a river of southern Vietnam. It originates in Lâm Đồng Province and flows through Bình Thuận Province and Đồng Nai Province for . The river has a catchment area of . It is a major tributary of the Đồng Nai River, which it joins at Trị An Lake, and therefore part of one of the largest river systems in Vietnam. One of its tributaries in Bình Thuận Province supports a hydro-power plant: the Hàm Thuận – Đa Mi Hydroelectric Power Complex.