Duran Kalkan (born 1954), also known as Selahattin Abbas, is a senior commander of the Kurdistan Workers' Party (PKK).
Duran Kalkan, Murat Karayilan and Cemil Bayik, the three current leaders of the PKK, are wanted by the United States Department of the Treasury and the Government of Turkey for recruiting child soldiers, involving in drug trafficking, targeting Turkish government officials, police and security forces, and indiscriminately injuring and killing civilians.