Tristan Valentin (born 23 February 1982 in Le Blanc-Mesnil, Seine-Saint-Denis) is a French professional road bicycle racer, who last rode for the Cofidis team.

Valentin tested positive for Heptaminol on 6 June 2006.

The UCI summary of 'Decisions on Anti-Doping Rule Violations made in 2006' states "disqualification and ineligibility for 6 months".

[1] However, the positive result was blamed on a medicine that the team doctor prescribed for varicose veins.

This biographical article related to a French cycling person born in the 1980s is a stub.