Carolus (Charles) Ludovicus Nissens (11 July 1858 â 1919) was a Belgian architect.
He mainly designed bourgeois houses in neo-renaissance and eclectic style. Well-known works by him include the Huis Pieter De Coninck in Sint-Niklaas (1902), the of Temse (1905) and the rectory of Kruibeke (1906).