The 2011 Martyr's Memorial A-Division League (known as the Martyrs' Memorial Red Bull 'A' Division League Football Tournament 2011 for sponsorship reasons) was the 39th season of the A-Division League since its establishment in 1954/55. A total of 18 teams competed in the league. The season began on 28 April 2011 and concluded on 16 July 2011. Defending champions Nepal Police Club won the league.