Mario Wilfredo Contreras (born May 22, 1987 in Santa Ana) is a Salvadoran road racing cyclist.
[1] He represented El Salvador at the 2008 Summer Olympics in Beijing, where he competed for the men's road race.
In a field of 142 riders who had qualified for that event, only 89 completed the race.
Contreras was one of the riders who did not finish the race.
This biographical article relating to Salvadoran cycling is a stub.