Iraqi Kurdistan or Southern Kurdistan (Kurdish: باشووری کوردستان, romanized: Başûrê Kurdistanê) is the Kurdish-populated region incorported into Iraq and considered by Kurds as one of four parts of Greater Kurdistan. Most of the geographical region of Iraqi Kurdistan is governed by the Kurdistan Region (KRG) (Kurdish: ههرێمی کوردستان, romanized: Herêmî Kurdistan) which is an autonomous region recognized by the Iraqi constitution, The capital of the autonomous region is Erbil and the parliament has 111 seats.
The four governorates of Duhok, Erbil, Silemani, and Halabja comprise around 46,861 square kilometres (18,093 sq mi) and have a population of 5.9 million (2018 estimate). In 2014, during the 2014 Iraq Crisis, Iraqi Kurdistan's forces also took over much of the disputed territories of Northern Iraq; the total area under the control of the Kurdistan Regional Government contains some 8 million inhabitants.
The name Kurdistan literally means "Land of the Kurds". The suffix -stan is Persian for "place of" or "country". In English translations of the Constitution of Iraq, it is called "Kurdistan", four times in the phrase "region of Kurdistan" and once in the phrase "Kurdistan region". The regional government calls it the "Kurdistan Region".
The full name of the government is the "Kurdistan Regional Government", abbreviated "KRG". Kurds also refer to the region as Başûrê Kurdistanê or Başûrî Kurdistan ("Southern Kurdistan"), referring to its geographical location within the whole of Kurdistan. During the Baath Party administration in the 1970s and 1980s, the region was called the "Kurdish Autonomous Region".