Dudinka (Russian:Дуди́нка, Nenets:Тут'ын) is a town on the Yenisei river and the administrative center of Taymyrsky Dolgano-Nenetsky District of Krasnoyarsk Krai, Russia. It used to be the administrative center of Taymyr Autonomous Okrug, which was merged into Krasnoyarsk Krai on January1, 2007. Population: 22,175(2010 Census);25,132(2002 Census);32,325(**** Census).