The ambassador extraordinary and plenipotentiary of Russia to Guyana is the official representative of the president and the government of the Russian Federation to the president and the government of Guyana.
The ambassador and his staff work at large in the Embassy of Russia in Georgetown. The post of Russian ambassador to Guyana is currently held by , incumbent since 17 June 2025. The ambassador to Guyana has historically had dual accreditation as the non-resident ambassador to Barbados, Grenada, Saint Vincent and the Grenadines, and Trinidad and Tobago. The current ambassador has, as of December 2025, only been accredited to Saint Vincent and the Grenadines, and Trinidad and Tobago, in addition to Guyana.
Diplomatic relations between the Soviet Union and Guyana were established on 17 December 1970. Relations were initially handled through the Soviet embassy in Brazil, with the ambassador to Brazil, , appointed on 24 July 1970. The embassy in Georgetown was opened in 1976, and was appointed as the first ambassador solely accredited to Guyana. With the dissolution of the Soviet Union, Guyana recognized the Russian Federation as its successor state. The incumbent Soviet ambassador, Mikhail Sobolev, continued as the Russian ambassador until 1995.
Relations between Russia and a number of other Central American states have been handled through the embassy in Guyana, with the ambassador to Guyana dually accredited to Trinidad and Tobago since 1991, to Saint Vincent and the Grenadines, and to Grenada, since 2007, and to Barbados since 2008.