Gondulph (Latin: Gondulfus, Gundulphus, perhaps also Bethulphus) of Maastricht, sometimes of Tongeren (6th/7th century AD) was a bishop of Tongeren-Maastricht venerated as a Roman Catholic and Eastern Orthodox saint.

However, the official title episcopus Tungrorum (bishop of Tongeren) was retained until the 10th century, although the episcopal see had by that time been transferred from Maastricht to Liège.

Monulph must have occupied the See of Tongeren-Maastricht until the end of the 6th, beginning of the 7th century, because a bishop of Maastricht named Betulph (Betulphus) was present at the Council of Paris in 614.

Heavenly intervention caused furious wolves to attack the pagan colonists of the region and devoured them before the eyes of the horrified bishop.

An epitaph commemorating this event was later misinterpreted, giving rise to a legend according to which the two saints arose from their tomb in 1039 in order to assist at the dedication of Aachen Cathedral.