The Måbødalen bus accident or Måbø Canyon bus accident was a bus crash on 15 August 1988 during the descent from Hardangervidda into the Måbø Valley on the way to Bergen, Norway. The bus collided with the concrete arch at the exit of the Måbø Tunnel on Norwegian National Road 7. Of the 34 passengers aboard, 15 were killed. In addition, the bus driver died from his injuries 12 days after the crash.