Mikhail Sergeyevich Solomentsev (Russian: Михаи́л Серге́евич Соло́менцев; 7 November [O.S. 24 October] 1913 – 15 February 2008) was a Soviet politician and bureaucrat.

He was born in a village Yerilovka in the Yeletsky Uyezd, and graduated from the Leningrad Technological Institute in 1940.

Solomentsev was a leading Communist Party functionary in Kazakhstan during 1962–1964 and was in charge of the Rostov-on-Don obkom from 1964–1966. He served as a secretary of the Central Committee of the Communist Party of the Soviet Union during the years 1966–1971. Solomontsev was Chairman of the Council of Ministers of the Russian RSFR starting from 1971 and ending in 1983. He sat in the Politburo from 1983 until he was sacked by Mikhail Gorbachev in 1988. In October 1987 he led a Commission of the Politburo to look into the “purge” trials of the 1930s. The commission also included KGB Chief Viktor Chebrikov and Alexander Yakovlev. Yakovlev subsequently took over the chairmanship of the Commission.