Diljá Pétursdóttir, known professionally by her first name, is an Icelandic singer. She made her name as a participant in the second series of Iceland's Got Talent in 2015. She moved to Denmark in 2020 alternating between her studies in physiotherapy and her singing ambitions.
She won Söngvakeppnin 2023 and represented Iceland at the Eurovision Song Contest 2023 in Liverpool with the song Power, finishing in 11th place in the second semifinal.
She was a member of the Icelandic jury for the 2024 contest in Malmö.