In October 1998, Trimble and John Hume were awarded the Nobel Peace Prize for their efforts to find a peaceful solution to the conflict in Northern Ireland. The Nobel Institute noted:
As the leader of the traditionally predominant party in Northern Ireland, David Trimble showed great political courage when, at a critical stage of the process, he advocated solutions which led to the [Belfast (Good Friday)] peace agreement.
At a ceremony in Paris on 8 December 1999, Trimble was appointed an Officier in the Légion d'Honneur by the French Government.
In 2002, Trimble was awarded the Golden Plate Award of the American Academy of Achievement