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