Erez Lieberman Aiden (born 1980, né Erez Lieberman) is an American research scientist active in multiple fields related to applied mathematics. He is an assistant professor at the Baylor College of Medicine, and formerly a fellow at the Harvard Society of Fellows and visiting faculty member at Google. He is an adjunct assistant professor of computer science at Rice University. Using mathematical and computational approaches, he has studied evolution in a range of contexts, including that of networks through evolutionary graph theory and languages in the field of culturomics. He has published scientific articles in a variety of disciplines.