Trebur Open Air is a non-profit music festival held each summer in Trebur, in southern Hesse, Germany. Since 1993, it has brought people together for a weekend of live music, swimming and community in the Rhine-Main region. The festival welcomes audiences of different ages and backgrounds, creating a relaxed, friendly atmosphere where longtime attendees and newcomers can enjoy the experience side by side.

Its programme features established artists, emerging bands, local talent and international performers, with music spanning a range of genres. Alongside performances, visitors can enjoy the nearby outdoor swimming pool and festival camping, making the event a shared weekend getaway as well as a concert experience. The website provides practical information, including tickets, performance schedules, directions, camping details and accessibility and awareness resources. It also shares festival news and offers merchandise, while providing contact information for press and booking enquiries.

Around 250 volunteers help make Trebur Open Air possible each year.