International Association of South-East European Studies, better known by its French language abbreviation AIESEE (from ) is an international scholarly, non-political and non-profit professional association focusing on Balkan studies and related fields of studies. The Association was established in Bucharest, capital of Romanian People's Republic, on 23 April 1963 and as of 2019 it brings together 25 member organizations in the field.
The organization was established during the first meeting of what was then 6 Balkan countries' National UNESCO Commissions (Albania, Bulgaria, Greece, Romania, Turkey and Yugoslavia) pushing for regional cooperation despite the Cold War divisions in the region. The founding members ambition was to promote international solidarity, commonalities between Balkan and Third World historical experiences, regional hybridity in links with Mediterranean, Near East and Slavic world, as well as critique of hegemonic representations of the region by scholars from the core countries.