Untold Festival is the largest electronic music festival held in Romania, taking place in Cluj-Napoca at the Cluj Arena. It is held annually and was designated Best Major Festival at the European Festival Awards 2015.

The tenth edition of the festival will mark the 10th anniversary of Untold. T It takes place between 7 and 10 August 2025. Post Malone and Metro Boomin are the main live acts of the line-up along Anyma and Armin van Buuren as the main DJs. Other artists are Martin Garrix, Alan Walker, Alok, Don Diablo, Tiesto, Hugel, Becky Hill, Fisher, Dom Dolla, Artbat, Adriatique and a surprise act that will be revealed in the day when they will perform. Also local artists like Delia, Irina Rimes or Inna will have special moments for the anniversary edition with special guests. The festival remained on the 3rd position on DJ Mag Top 100 Festivals.