Troyes Cathedral is a Roman Catholic church, dedicated to Saint Peter and Saint Paul, located in the town of Troyes in Champagne, France. It is the episcopal seat of the Bishop of Troyes.

The cathedral, in the Gothic architectural style, has been a listed monument historique since 1862. Light pours in through more than 1,500 square metres of stained glass.Some of these windows are as old as the 1200s. The essential ones are the three huge roses, measuring ten metres across and with astoundingly intricate traceries designed by the renaissance architect Martin Chambiges.