Sint-Leonarduskerk, Gothic parish church in Sint-Lenaarts, Belgium.

Sint-Leonarduskerk is a parish church in Brecht built in Gothic style with pointed arches, ribbed vaults, and detailed stonework throughout its interior. Large windows flood the spaces with natural light and allow views toward the surrounding town.

Construction of the tower began in 1436 and was completed in 1457, while the main building took shape between 1530 and 1550. This division shows how the structure grew over more than a century in two distinct phases.

The village was originally called Houthoven; devotion to Saint Leonard of Noblat in the chapel gradually replaced that name with Sint-Lenaarts. Pilgrims travelling from the Netherlands via Breda to Santiago de Compostela stopped here to leave offerings, and these gifts made the chapel comparatively wealthy. The church is one of the few in Belgium dedicated to Leonard of Noblat.

The church stands in the village centre of Sint-Lenaarts, in the municipality of Brecht. A churchyard runs along its north, east and south sides, with a covered procession walk on the north and east where the Seven Sorrows of Mary are depicted. The bronze Sacred Heart statue stands in front of the west facade, a memorial to the victims of the First World War.

The nickname 'Cathedral of the Heath' comes from the church's spatial design and its finish: a sandstone plinth, cornerstones, buttresses, tower, crossing tower and pinnacles set against brick. The west tower rises about 36.58 m and has three statues above the portal: Saint Michael with the dragon, Mary with the child Jesus, and Saint Leonard with his attribute, chains.