Sergey Trishin (born Moscow, 12 December 1984) is a Russian rugby union player.
He had his debut at the 52-12 win over the Czech Republic, at 12 November 2005, in Krasnodar, for the Six Nations B.
He was called for the 2011 Rugby World Cup, playing in a single game and without scoring.
He had his final cap at the 32-27 loss to Japan, at 24 November 2018, in Gloucester, England, in a friendly game.
This biographical article relating to Russian rugby union is a stub.