Dr. María Isabel Fierro Bello (born 1956) is a researcher on Middle Eastern studies at the Spanish National Research Council's humanities branch in Madrid, Spain. Fierro has served as a visiting scholar at the University of Chicago Divinity School in Chicago, the School for Advanced Studies in the Social Sciences in Paris, The Institute for Advanced Studies at The Hebrew University of Jerusalem and the Institute for Advanced Study in Princeton. In 2020 she was elected to the American Philosophical Society.