Sergey Konstantinovich Nosov (; born 17 February 1961) is a Russian politician currently serving as the 5th Governor of Magadan Oblast since 13 September 2018.
He was a member of the from 28 January to 2 August 2019, and again since 21 December 2020.
He is a member of the Supreme Council of the United Russia party.
He was the mayor of Nizhny Tagil from 2012 to 2018, the Vice-Governor of Sverdlovsk Oblast from July to October 2012, and was the General Director of the Nizhny Tagil Metallurgical Plant from 1999 to 2005.
