The Kurdistan Workers' Party (Kurdish: Partiya Karkerên Kurdistan or پارتی کار کهرانی کوردستان Parti Karkerani Kurdistan), commonly known as PKK, also known as KGK and formerly known as KADEK (Freedom and Democracy Congress of Kurdistan) or KONGRA-GEL (Kurdistan People's Congress), is a Kurdish organization which has since 1984 been fighting an armed struggle against the Turkish state for an autonomous Kurdistan and cultural and political rights for the Kurds in Turkey. The group was founded on 27 November 1978 in the village of Fis, near Lice and was led by Abdullah Öcalan. The PKK's ideology was originally a fusion of revolutionary socialism and Kurdish nationalism — although since his imprisonment, Öcalan has abandoned orthodox Marxism. The PKK is listed as a terrorist organization internationally by states and organizations, including United Nations, NATO, the United States and the European Union.
The name 'PKK' is usually used interchangeably for the name of its armed wing, the People's Defence Force (HPG), which was formerly called the Kurdistan National Liberty Army (ARGK).