Marganlar (Persian: مرگنلر) is a city in, and the capital of, Qarah Quyun District of Showt County, West Azerbaijan province, Iran. It also serves as the administrative center for Qarah Quyun-e Jonubi Rural District. The city is the merger of the villages of Margan-e Azizabad, Margan-e Esmail Kandi, Margan-e Qadim, and Margan-e Vasat.