Gap Cathedral (French: Cathédrale Notre-Dame-et-Saint-Arnoux de Gap) is a Roman Catholic church located in the town of Gap, Hautes-Alpes, France. It is a national monument, and is the seat of the Bishop of Gap and Embrun.
The original cathedral on the site was built around the 5th century on the ruins of a Roman temple to the God Apollo. Over the years several buildings stood at the same spot. The current cathedral was built between 1866 and 1904 in Neo-Gothic style by architect on the site of the former cathedral of mediaeval origin which was then falling to ruin.
The architecture is heavily inspired by the nearby Embrun Cathedral.
The current bell tower stands at high.
Consecrated on 21<sup>st</sup> September 1895, the feast of , who was Bishop of Gap during the 11<sup>th</sup> century and is the patron saint of the Gap. The cathedral was designated as a Monument historique on 9<sup>th</sup> August 1906.