Charles Lee Isbell Jr. is an American computationalist, researcher, and educator. He has been a professor in the Georgia Institute of Technology College of Computing since 2002, and since July 2019 is the John P. Imlay, Jr. Dean of the College. His research interests focus on machine learning and artificial intelligence, particularly interactive and human-centered AI. He has published over 100 scientific papers. In addition to his research work, Isbell has been an advocate for increasing access to and diversity in higher education.