Église Saint-Nicolas de Guarbecque, Catholic church in Guarbecque, Pas-de-Calais, France

The Église Saint-Nicolas de Guarbecque is a stone church with a light grey facade and a steeply pitched, moss-tinted roof. Its front has three gabled sections with tall, dark, multi-paned windows, and to the right a larger gabled section with a pointed-arch window fitted with tracery. A central tower rises behind, with paired round-arched openings, corner pinnacles and an octagonal spire topped with a cross. A carved stone entrance with a rounded door sits at the base left of centre, and gravestones stand in front.

The oldest parts of the church date to the 12th century, including lower walls and the main entrance. The building suffered damage during conflict in the 16th century, but was repaired and extended multiple times in following centuries, including the addition of a sacristy around 1699.

The church is named for Saint Nicholas, and its south chapel was built around 1200, while the north chapel walls belong to the 11th-century phase described by Pierre Héliot. The nave and side aisles were rebuilt between 1702 and 1705, dates still visible on the gables of the south and north collateral. The building has been a classified monument since 15 March 1909.

The church stands in the centre of Guarbecque, in the Pas-de-Calais department. The building is oriented with its flat chevet to the east and its west facade facing the street, where the carved entrance and the gravestones stand. Visitors enter through the west door; the nave of three bays, the two side aisles and the bell tower crossing lie straight ahead.

The lower walls of the choir, the north chapel and the west facade are 11th-century work, identified by Pierre Héliot through their rough masonry. The flat buttresses on the west facade led him to conclude that the original church already had side aisles.