Southern Ijaw is a Local Government Area of Bayelsa State, Nigeria. Its headquarters are in the town of Oporoma (or Osokoma) in the north of the area at4°48′17″N 6°04′44″E / 4.80472°N 6.07889°E. The area has a coastline of approximately 60 km on the Bight of Benin. It is the second largest Local Government in Nigeria (Landscape) after Toro Local Government of Bauchi State. The people and their language are known as Izon. It has Institutions like The Niger Delta University(NDU) in Amassoma and Federal Polytechnic Ekowe in Ekowe, it is the home of Kolu United FC of Koluama II.
It has an area of 2,682 km² and a population of 319,413 at the 2006 census.
The postal code of the area is 560.