Charlie Catlett (born 1960) is a Senior Research Scientist at the University of Illinois Discovery Partners Institute and a Visiting Senior Fellow at the Mansueto Institute for Urban Dynamics at the University of Chicago. He was previously a Senior Computer Scientist at Argonne National Laboratory and a Senior Fellow in the Computation Institute, a joint institute of Argonne National Laboratory and The University of Chicago, and a Senior Fellow at the University of Chicago's Harris School of Public Policy.