The 10th IAAF World Indoor Championships in Athletics under the auspices of the International Association of Athletics Federations (IAAF) were held in the Budapest Arena, Hungary between March 5 and March 7, 2004. A total off 139 countries were represented by 677 athletes at the championships.

The László Papp Budapest Sports Arena, also known as Budapest Sports Arena or locally just Arena, is a multi-purpose indoor arena in Budapest, Hungary. It is the second biggest sports complex in the country after MVM Dome, which is also in the capital, and it is named after Hungarian boxer László Papp. The venue can hold up to 12,500 people in its largest concert configuration, up to 11,390 for boxing and 9,479 for ice hockey. It was built as a replacement for the Budapest Sports Hall which stood in the same place and was destroyed in a fire in December 1999. A long-distance bus station is situated under the building.