Antonio Caso Andrade (December 19, 1883 – March 6, 1946) was a Mexican philosopher and rector of the former Universidad Nacional de México, nowadays known as the National Autonomous University of Mexico from December 1921 to August 1923. Along with José Vasconcelos, he founded the Ateneo de la Juventud, a humanist group against philosophical positivism. The Athenian generation opposed Auguste Comte and Herbert Spencer’s philosophical views, giving credence to and expanding on the ideas of Henri Bergson, Schopenhauer, Nietzsche, and José Enrique Rodó. Caso opposed rationalism. His group the ateneistas believed in a moral, willing, and spiritual individual being. He was the older brother of archaeologist Alfonso Caso.