Melodifestivalen 2017 was the 57th edition of the Swedish music competition Melodifestivalen, which selected Sweden's entry for the Eurovision Song Contest 2017. The competition was organised by Sveriges Television (SVT) and took place over a six-week period between 4 February and 11 March 2017.

Melodifestivalen is an annual song competition organised by Swedish public broadcasters Sveriges Television (SVT) and Sveriges Radio (SR). It determines the country's representative for the Eurovision Song Contest, and has been staged almost every year since 1959. In the early 2000s, the competition was the most popular television program in Sweden; it is also broadcast on radio and the Internet. In 2012, the heats averaged 3.3 million viewers, and over an estimated four million people in Sweden watched the final, almost half of the Swedish population.