Guadalupe Alan Castillo Rodriguez (born December 12, 1965 in Cd. Victoria, Tamaulipas / Mexico) was the Rector of the Polytechnic University of Apodaca in Mexico from 2013 to 2017, and since 1999 he´´ is Professor of Materials with a focus on inorganic, non-metallic materials of the University of Nuevo León (UANL). He studied mechanical engineering and electrical engineering in Mexico from 1984 to 1989 and received his master's degree in mechanical engineering in 1992. He learned the German language in Göttingen and was granted the right to enroll at a German university through the local Goethe-Institut. In 1996, the Technical University of Clausthal awarded him the academic degree of a graduate engineer in materials science (focus on ceramic materials). A year later, as part of the scientific cooperation between UANL and TU Clausthal, he received his doctorate at UANL under the direction of Professor K. J. Leers of the TU Clausthal. Professor Castillo worked as an engineer at Magnelec GmbH (Peñoles Group) from 1992 to 1997, after which he worked as a researcher at the Research and Development Center of the Peñoles Group.