Ø Festival is a summer festival and holiday experience held on Langeland, Denmark, bringing together music, creative activities, sport, play and wellness for visitors of all ages. The 2026 festival is scheduled for 23–25 July, during week 30, at the festival site on Rue Mark. Its program combines live music with experiences designed for families and adults, creating opportunities to enjoy concerts, relax and take part in activities throughout the event.

The festival’s featured artists include Dizzy Mizz Lizzy, Malk De Koijn, Jonah Blacksmith, SAVEUS, Blæst, MADSEN, KAtinka and Peter Sommer, alongside many others. Visitors can explore accommodation options and festival packages, including camping, as well as Ø Wellness, which is promoted with sauna sessions, sea views and concerts at sunset. The organizers also invite people to volunteer and provide information about transport, including night buses and travel between Copenhagen and Langeland. Ø Festival describes itself as a place for a summer island holiday filled with music, relaxation and a wide range of shared experiences.