Royal Military and Mathematics Academy of Brussels

The Royal Military and Mathematics Academy of Brussels (Spanish: la Academia Militar de Bruselas), also known as the Academia Militar del Ejército de los Países Bajos, was established in 1675 in Brussels, capital of the Habsburg Netherlands, by Sebastián Fernández de Medrano at the request of Carlos de Aragón de Gurrea, 9th Duke of Villahermosa, Governor and Captain General of the Spanish Netherlands. The Academy was founded to address the critical shortage of artillerymen and military engineers in the Spanish Tercio.

Medrano served as the sole director of the academy throughout its existence in Brussels, which ceased operations following the Spanish defeat at the Battle of Ramillies on 28 May 1706. However, it is regarded as the first formal project of general military training in the Spanish monarchy and served as the institutional predecessor of later Royal Military Academies established in Barcelona, Ceuta, Oran, and eventually the Academia General Militar.