Portugal in the Eurovision Song Contest 2011

Portugal was represented at the Eurovision Song Contest 2011 with the song "A luta é alegria" written by Vasco Duarte and Jel, and performed by the group Homens da Luta. The Portuguese participating broadcaster, Rádio e Televisão de Portugal (RTP), organised the national final Festival da Canção 2011 in order to select its entry for the contest. The competition took place on 5 March 2011 where "A luta é alegria" performed by Homens da Luta emerged as the winner after achieving the highest score following the combination of votes from twenty regional juries and a public televote.

Portugal was drawn to compete in the first semi-final of the Eurovision Song Contest which took place on 10 May 2011. Performing during the show in position 16, A luta é alegria" was not announced among the top 10 entries of the first semi-final and therefore did not qualify to compete in the final. It was later revealed that Portugal placed eighteenth out of the 19 participating countries in the semi-final with 22 points.