The University of Maryland, Baltimore County (UMBC) is a public research university in Catonsville, Maryland, United States. It had a fall 2025 enrollment of 13,530 students. In 2019, it had 61 undergraduate majors, over 92 graduate programs (38 master, 25 doctoral, and 29 graduate certificate programs) and the first university research park in Maryland. It is classified among "R1: Doctoral Universities – Very High Research Activity".

Established as a part of the University System of Maryland in 1966, the university became the first public college or university in Maryland to be inclusive of all races. UMBC has the fourth highest enrollment of the University System of Maryland, specializing in natural sciences and engineering, as well as programs in the liberal arts and social sciences. Its athletic teams are known as the UMBC Retrievers and participate in the America East Conference.