2005 Eurocup Mégane Trophy

The 2005 Eurocup Mégane Trophy season was the inaugural season of the Renault–supported touring car category, a one-make racing series that is part of the World Series by Renault. The season began at Circuit Ricardo Tormo on 4 June and finished at the Autodromo Nazionale Monza on 23 October, after seven rounds and fifteen races. Jan Heylen won the title, having battled Renaud derlot for the entire campaign.