Kurdistan ( (listen) (help·info) "Land of the Kurds"; also formerly spelled Curdistan; ancient name: Corduene) is a roughly defined geo-cultural region wherein the Kurds form a prominent majority population, and Kurdish culture, language, and national identity have historically been based.

Contemporary use of Kurdistan refers to parts of eastern Turkey (Turkish Kurdistan), northern Iraq (Iraqi Kurdistan), northwestern Iran (Iranian Kurdistan) and northern Syria inhabited mainly by Kurds. Kurdistan roughly encompasses the northwestern Zagros and the eastern Taurus mountain ranges, and covers small portions of Armenia.

Iraqi Kurdistan first gained autonomous status in 1970 agreement with the Iraqi government and its status was re-confirmed as an autonomous entity within the federal Iraqi republic in 2005. There is also a province by the name Kurdistan in Iran, although it does not enjoy self-rule.

Some Kurdish nationalist organizations seek to create an independent nation state of Kurdistan, consisting of some or all of the areas with Kurdish majority, while others campaign for greater Kurdish autonomy within the existing national boundaries.