Daniel Cosío Villegas (July 23, 1898 – March 10, 1976) was a prominent Mexican economist, essayist, historian, and diplomat. Cosío Villegas was born in Mexico City. After studying one year in engineering and two years of philosophy, he received a B.A. in Law from the National University (nowadays UNAM) and took several courses in economics at Harvard, Wisconsin and Cornell. Later, he received master's degrees from the London School of Economics and the École libre de sciences politiques of Paris (now Institut d'études politiques de Paris).