South Bengkulu is a regency of Bengkulu Province, Indonesia, on the island of Sumatra. It originally comprised all of that part of Bengkulu Province situated to the southeast of the city of Bengkulu, but on 25 February 2003 this area was split into three parts, with the most southeastern districts split off to form a new Kaur Regency and the most northwestern districts split off to form a new Seluma Regency. The reduced South Bengkulu Regency now covers 1,219.91 km2, and had a population of 142,940 at the 2010 Census and 166,249 at the 2020 Census; the official estimate as at mid 2024 was 173,315 - comprising 88,188 males and 85,127 females. The regency's administrative centre is the coastal town of Manna.