Musi Rawas Regency is a regency of South Sumatra Province, Indonesia. Prior to 2013, it covered an area of 12,134.57 km2 and had a population of 524,919 at the 2010 Census; however on 10 June 2013 the northern half of the regency was split off to form a separate North Musi Rawas Regency. Previous to 2001, the Regency had also included the city of Lubuklinggau, which was split off to form an independent city outside the regency.