The 2009 Canadian Soccer League season was the 12th since its establishment where a total of 17 teams from Ontario and Quebec took part in the league. The season began on May 15, 2008, and ended on October 24 where for the second straight season the Serbian White Eagles faced Trois-Rivières Attak at the CSL Championship. The Attak denied Serbia their championship title by defeating them 3-2 in a penalty shootout. The victory marked the organizations first championship title, and the return of the championship to Quebec since the 1978 season when Montreal Castors competed in the National Soccer League. Throughout the regular season both Serbia, and Trois-Rivieres won their respective divisions.