Église Notre-Dame-de-l'Assomption de Fontenay-le-Comte, Gothic church in Fontenay-le-Comte, France.

The Église Notre-Dame-de-l'Assomption is a Flamboyant Gothic church whose west facade carries an 82-metre limestone bell tower with an octagonal spire flanked by four corner turrets. The three-aisled nave has four bays, and the choir ends in three apses. A Romanesque crypt, rediscovered in 1846, lies beneath the choir, its groin vaults resting on 14 columns, four of them free-standing.

The present church was rebuilt from 1423, when work began on three new vaults, and completed around 1540 with the chevet and west portal. Liénard de Réau, recorded as master mason in the 1540 fabric accounts, built the Chapelle des Brisson using stone from Longèves. Huguenot wars damaged the vaults and spire, and in 1794 the church became a Temple of Reason.

The church is dedicated to the Assumption of Mary, and its 19th-century stained-glass windows from the Lobin workshop in Tours show scenes from her life: her Presentation in the Temple, the Annunciation, the Visitation and her Death. The walnut pulpit, installed in 1787, rests on the back of an atlas, and a medallion on its basket depicts Moses with the tablets of the Law.

The church stands on Place du 137e Régiment d'Infanterie, with its north side along the former Grande Rue, now Rue Gaston Guillemet. The south elevation still shows the roofline marks (corbels and putlog holes) of the adjoining Notre-Dame priory. The 1846-discovered crypt lies beneath the nave and choir.

The crypt, rediscovered in 1846 during floor repairs in the nave, is the oldest surviving part of the site. Its groin vaults rest on 14 columns, four of them free-standing and six cut from a single block, with plain cushion capitals; two carry discs with circular hollows. Wooden coffins and bones were found when it was cleared.