Bulgaria participated in the Eurovision Song Contest 2011 with the song "Na inat" written by Sebastian Arman, David Bronner, Poli Genova and Borislav Milanov. The song was performed by Poli Genova. The Bulgarian broadcaster Bulgarian National Television (BNT) organised the national final Bŭlgarskata pesen v „Evroviziya 2011” in order to select the Bulgarian entry for the 2011 contest in Düsseldorf, Germany. 19 entries were selected to participate in the national final, held on 23 February 2011, where "Na inat" performed by Poli Genova emerged as the winning entry following the combination of votes from a 55-member jury panel and a public televote.

The Eurovision Song Contest 2011 was the 56th edition of the Eurovision Song Contest. It took place in Düsseldorf, Germany, following the country's victory at the 2010 contest with the song "Satellite" by Lena. Organised by the European Broadcasting Union (EBU) and host broadcasters Arbeitsgemeinschaft Rundfunkanstalten Deutschland (ARD) and Norddeutscher Rundfunk (NDR), the contest was held at the Düsseldorf Arena and consisted of two semi-finals on 10 and 12 May, and a final on 14 May 2011. The three live shows were presented by German comedians Anke Engelke and Stefan Raab, and television presenter Judith Rakers.