Boris Grigoryevich Plotnikov (; 2 April 1949 – 2 December 2020) was a Soviet and Russian actor. His career began in 1970 and he retired in 2019. Plotnikov appeared in more than seventy movies and television series. He was born in Nevyansk, Soviet Union.
His best known roles were as Sotnikov in the 1977 drama movie The Ascent, as Nikolai in the 1988 crime movie The Cold Summer of 1953 and as Ivan in the 1988 science fiction television movie Heart of a Dog.
Plotnikov died on 2 December 2020 in Moscow from COVID-19 at the age of 71.