The ambassador extraordinary and plenipotentiary of Russia to Mongolia is the official representative of the president and the government of the Russian Federation to the president and the government of Mongolia.
The ambassador and his staff work at large in the Embassy of Russia in Ulaanbaatar. There are consulates-general in Darkhan and Erdenet. The post of Russian ambassador to Mongolia is currently held by , incumbent since 18 January 2023.
Diplomatic relations between the Russian Soviet Federative Socialist Republic and Mongolia were first formalized on 5 November 1921. The first diplomatic representative, , was appointed on 7 July 1922. The Russian Soviet Federative Socialist Republic became one of the constituent republics in the formation of the Soviet Union in late 1922, and representation continued throughout the existence of the Soviet Union. With the dissolution of the Soviet Union in 1991, the incumbent Soviet ambassador, , continued as representative of Russia until 1992.