Antonio Brú Espino (born 1962) is Theoretical physicist and permanent professor in the Departament of Applied Mathematics at the Universidad Complutense de Madrid. Brú received his PhD in 1995 from the Universidad Complutense de Madrid, in physics, with advisor Miguel Ángel Rodríguez. He began his research career in 1989 at the Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) in the field of anomalous transport and complex systems. In 1993, he established his own research group to study tumor growth. In 2002, he moved to the Consejo Superior de Investigaciones Científicas(CSIC).