The University of Tennessee (UT), sometimes called the University of Tennessee, Knoxville (UT Knoxville or UTK), is the flagship institution of the statewide land-grant University of Tennessee public university system in the American state of Tennessee. The system is headquartered in Knoxville and includes campuses in Memphis, Martin, Tullahoma, and Chattanooga.

Additionally, UT-Battelle, a partnership between the university and the Battelle Memorial Institute, manages Oak Ridge National Laboratory.