Kasteel Claeys-Bouüaert, Neo-Flemish Renaissance castle in Mariakerke, Ghent, Belgium

Kasteel Claeys-Bouüaert is a moated castle at Kasteeldreef 2-6 in Mariakerke, built of brick and hardstone in neo-Flemish Renaissance style. A round turret with a domed cap stands at the left corner, a steep pyramidal roof rises at the right end, and the central entrance bay has a balcony, stepped gable and columns. The castle farm, gardener's house and stables, in similar style, date from 1879.

Built between 1890 and 1892 by Antwerp architect Joseph Schadde for Edmond Bracq-Hurraux, it replaced an earlier feudal structure at the same location. This construction reflected the trends of wealthy landowners building grand residences during the late 1800s.

Since 1998 the castle has housed the Centrum voor Jonge Kunst (CJK), whose initials appear on a red panel above the entrance. It gives young artists a forum and runs Kasteelateliers with the City of Ghent's Academy of Fine Arts. A small theatre hall hosts theatre and music performances.

The castle stands at Kasteeldreef 2-6 in Mariakerke, on a moated site reached by avenues already mapped in 1729. The grounds are private property of the city of Ghent, so visitors should keep to the public paths and lanes around the domain rather than the castle island itself. The castle was listed as a protected monument in 1996.

The castle stands on a site of feudal origin; the shape of its moats suggests a Frankish motte, probably first held by Raas van Gavere, lord of Mariakerke, then by the Van Vaernewijck family. The precise early history remains unknown.