An astonishing victory that will be watched around the worldpublished at 20:51 BST
Nick Thorpe
Central Europe correspondent, in Budapest
Orbán has led Hungary almost unchallenged for 16 years.
A short while ago, he rang his rival Péter Magyar, the leader of the opposition Tisza Party, to concede.
He congratulated him on his victory and then, surrounded by gloomy-faced leading members of his party Fidesz, he announced his party’s defeat to his supporters.
On the other side of the River Danube in Tisza headquarters, party workers hugged each other, while the crowds on the shore of the river began to celebrate.
The margin of victory looks huge – big enough to secure a two-thirds majority in the new parliament for Tisza.
This is an astonishing victory for a centre-right party only founded two years ago and a serious blow to national populists – not just here in Hungary, but across Europe.
