The University of Maryland, College Park (University of Maryland, UMD, or simply Maryland) is a public land-grant research university in College Park, Maryland, United States. Founded in 1856, UMD is the flagship institution of the University System of Maryland and is the largest university in the state of Maryland.

UMD is the largest university in Maryland and in the Washington metropolitan area. Its eleven schools and colleges offer over 200 degree-granting programs, including 113 undergraduate majors, 107 master's programs, and 83 doctoral programs. UMD's athletic teams are known as the Maryland Terrapins and compete in NCAA Division I as a member of the Big Ten Conference.

A member of the Association of American Universities, the University of Maryland's proximity to Washington, D.C. has resulted in many research partnerships with the federal government; faculty receive research funding and institutional support from many agencies, such as the National Institutes of Health, NASA, the National Institute of Standards and Technology, the Food and Drug Administration, the National Security Agency, and the Department of Homeland Security. It is classified among "R1: Doctoral Universities – very high research activity" and has been labeled a "Public Ivy". According to the National Science Foundation, the university spent a combined $1.14 billion on research and development in 2021, ranking it 17th among American universities.