The University of Puerto Rico at Bayamón (UPRB or UPR-Bayamón) is a public university in Bayamón, Puerto Rico. It is part of the University of Puerto Rico System (UPR) and is better known as CUTB from its previous name of Colegio Universitario Tecnológico de Bayamón in Spanish. It is the third largest campus in the whole UPR system in terms of population.