Laurent-Benoît Dewez (14 April 1731 – 1 November 1812) was a Belgian architect of Walloon origin. He is considered the most influential architect in the Austrian Netherlands (present-day Belgium) from the second half of the 18th century. His architectural projects are of international stature and introduced a neoclassical style, with Italian and English influences, to the region. He designed a large number of châteaux, abbeys and churches in Belgium, many of which were damaged after the French Revolution.