The 2009–10 CAA men's basketball season marks the 25th season of Colonial Athletic Associationbasketball. The conference is doing numerous "Silver Anniversary" programs and highlights throughout the season.
On October 20, 2009 the Colonial Athletic Association held their annual Media Day at the ESPN Zone in Washington, D.C. The results of a vote of the league’s coaches, sports information directors and media was announced to unveil the predicted order of finish for the CAA teams in the conference as well as the preseason all-conference teams.
William & Mary completed their season sweep of Atlantic Coast Conference opponents (2–0), marking the first time in school history that they have defeated two ACC foes on the road in the same season; the win was the Tribe's 9th in a row, good for the second longest winning streak in program history.