Tristan Lahaye (born 16 February 1983) is a French footballer who last played as a defender for Ligue 2 side Chamois Niortais.
Lahaye has played for AS Beauvais Oise, FC Sète, Amiens SC and LB Châteauroux in Ligue 2. He also had a spell in the Belgian Pro League with Kortrijk between 2008 and 2009.