John Millar Carroll (born 1950)[2] is an American distinguished professor of Information Sciences and Technology at Pennsylvania State University, where he previously served as the Edward Frymoyer Chair of Information Sciences and Technology.
In 1984 he founded the User Interface Institute at the IBM Thomas J. Watson Research Center.
In 1994, he joined Virginia Tech as Department Head of Computer Science to establish an HCI focus in research and teaching at the university's Center for Human-Computer Interaction.
He was a founding associate editor of the field's premier journal, ACM Transactions on Computer-Human Interaction, and a founding member of editorial boards of Transactions on Information Systems, Behavior and Information Technology, and the International Journal of Human-Computer Interaction.
[5][6] He was named an Honorary Fellow of the Society for Technical Communication in 2015 for his groundbreaking work on Minimalism.