Dmitry Nikolayevich Kozak is a Russian politician who has served as the Deputy Kremlin Chief of Staff since 24 January 2020. He previously served as the Deputy Prime Minister of Russia from 2008 to 2020. He has the federal state civilian service rank of 1st class Active State Councillor of the Russian Federation.

A Deputy Chairman of the Government of the Russian Federation is a member of the Government of Russia. The post is commonly referred to as "vice premier" both in and outside of Russia. According to the Chapter 6, Article 110 of the Constitution of Russia, "The Government of the Russian Federation consists of the chairman of the Government of the Russian Federation, Deputy Chairman of the Government of the Russian Federation and federal ministries". Article 112 states that the Chairman of the Government recommends candidates for the post of deputy chairmen to the President of Russia. The role of deputy chairmen of government of the Russian Federation is to coordinate the activities of federal government bodies and carry out other tasks in response to particular issues or events. The most senior of them is the First Deputy Prime Minister of Russia.