Markus Pöyhönen (born 25 October 1978, in Vantaa) is a Finnish former track and field athlete, who specialised in the 100m sprint.
He finished fifth in the race, though years later Dwain Chambers was disqualified and Pöyhönen's final position was fourth.
He finished seventh in the 60 metres final at the 2003 IAAF World Indoor Championships in Birmingham.
His 100 m personal best, also set in 2002, is 10.23 seconds; 0.02 s shy of the Finnish national record.
This biographical article relating to Finnish athletics is a stub.