Tomorrowland is an internationally recognised electronic dance music festival and entertainment brand originating in Belgium. Founded in 2005, Tomorrowland has grown from its original festival in Boom into a global cultural brand known for electronic music, elaborate stage design, immersive environments and large-scale experiences that bring together artists and audiences from around the world.

The flagship Tomorrowland festival takes place at De Schorre in Boom, in the province of Antwerp, Belgium. Its extensive festival grounds feature multiple stages, themed environments, large-scale production and a diverse programme spanning electronic music genres and styles. The Belgian event has become one of the world's most prominent destinations for electronic dance music.

The Tomorrowland brand has expanded beyond Belgium through international editions, events, concerts and experiences in locations around the world. These include Tomorrowland Winter in the French Alps and Tomorrowland Brasil, alongside other international projects and events associated with the brand.

Tomorrowland is recognised for combining electronic music with elaborate storytelling, visual production, art and themed environments. Its international presence has made the name synonymous with large-scale electronic music culture while maintaining its origins in Boom, Belgium.