Sweden was represented at the Eurovision Song Contest 2021 with the song "Voices", written by Joy Deb, Linnea Deb, Jimmy "Joker" Thörnfeldt, and Anderz Wrethov, and performed by Tusse. The Swedish participating broadcaster, (SVT), organised in order to select its entry for the contest.
Prior to the 2021 contest, (SR) until 1979, and (SVT) since 1980, had participated in the Eurovision Song Contest representing Sweden fifty-nine times since SR's first entry in . Sweden had won the contest on six occasions: in with the song "Waterloo" performed by ABBA, in with the song "Diggi-Loo Diggi-Ley" performed by Herreys, in with the song "" performed by Carola, in with the song "Take Me to Your Heaven" performed by Charlotte Nilsson, in with the song "Euphoria" performed by Loreen, and in with the song "Heroes" performed by MÃÂ¥ns Zelmerlöw. Following the introduction of semi-finals for the , Sweden's entries, to this point, have featured in every final except for 2010 when the nation failed to qualify.
As part of its duties as participating broadcaster, SVT organises the selection of its entry in the Eurovision Song Contest and broadcasts the event in the country. Since 1959, SR first and SVT later have organised the annual competition in order to select their entries for the contest.
Four heats, a Second Chance round and a final were held. It was held between 6 February and 13 March 2021 and all shows were held at the Annexet in Stockholm without an audience.
The final took place on 13 March 2021.
According to Eurovision rules, all nations with the exceptions of the host country and the "Big Five" (France, Germany, Italy, Spain and the United Kingdom) are required to qualify from one of two semi-finals in order to compete in the final; the top ten countries from each semi-final progress to the final. The European Broadcasting Union (EBU) split up the competing countries into six different pots based on voting patterns from previous contests, with countries with favourable voting histories put into the same pot. For the 2021 contest, the semi-final allocation draw held for 2020 which was held on 28 January 2020, will be used. Sweden was placed into the first semi-final, to be held on 18 May 2021, and was scheduled to perform in the first half of the show.
Once all the competing songs for the 2021 contest had been released, the running order for the semi-finals was decided by the shows' producers rather than through another draw, so that similar songs were not placed next to each other. Sweden was set to perform in position 4, following the entry from Russia and preceding the entry from Australia.
On 18 May, the day the semi-final was held, Sweden qualified for the Grand Final.
Sweden performed 25th in the grand final on 22 May 2021, following Italy and preceding San Marino.
Voting during the three shows involved each country awarding two sets of points from 1-8, 10 and 12: one from their professional jury and the other from televoting. Each nation's jury consisted of five music industry professionals who are citizens of the country they represent, with a diversity in gender and age represented. The judges assess each entry based on the performances during the second Dress Rehearsal of each show, which takes place the night before each live show, against a set of criteria including: vocal capacity; the stage performance; the song's composition and originality; and the overall impression by the act. Jury members may only take part in panel once every three years, and are obliged to confirm that they are not connected to any of the participating acts in a way that would impact their ability to vote impartially. Jury members should also vote independently, with no discussion of their vote permitted with other jury members. The exact composition of the professional jury, and the results of each country's jury and televoting were released after the grand final; the individual results from each jury member were also released in an anonymised form.
The following members comprised the Swedish jury: