Mikhail Mamiashvili (born 21 November 1963 in Konotop, Ukrainian SSR) is a Russian former Greco-Roman wrestler of Georgian origin.

He won an Olympic gold medal in Greco-Roman wrestling in 1988 in Seoul, South Korea, competing for the Soviet Union.

At the 2004 Summer Olympics, Mamiashvili was accused by a Swedish board member of wrestling's international governing body for giving signs to a referee of a gold medal match involving a Russian wrestler.

[2] In 2015, Mamiashvili was denied a United States visa to attend the UWW World Championships in Las Vegas.

[3] At the 2016 Summer Olympics, Mamiashvili was accused of punching Russia's 63 kg female wrestler Inna Trazhukova in the face twice following her loss to Poland's Monika Michalik in the bronze medal match.