Konstantin Tolokonnikov (born 26 February 1996 in Rostov-on-Don, Russia) is a Russian middle distance runner who has specializes in the 800 metres. Tolokonnikov has won silver medals at the 2013 World Youth Championships and at the 2015 European Junior Championships. At the 2015 European Junior Championships Tolokonnikov won the gold medal in the 4 × 400 metres relay.