Henri-Alexis Brialmont (Venlo, 25 May 1821 – Brussels, 21 July 1903), nicknamed The Belgian Vauban after the French military architect, was a Belgian army officer, politician and writer of the 19th century, best known as a military architect and designer of fortifications. Brialmont was also an active pamphleteer and political campaigner and lobbied through his career for reform and expansion of the Belgian military and was also involved in the foundation of the Congo Free State.