Maryland Route 193 is a state highway in the U.S. state of Maryland. Known for most of its length as University Boulevard and Greenbelt Road, the state highway runs 26.07 mi (41.96 km) from MD 185 in Kensington east to MD 202 north of Upper Marlboro. MD 193 serves as a major east-west commuter route in eastern Montgomery County and northern Prince George's County, connecting Wheaton, Silver Spring, Langley Park, College Park, and Greenbelt. The state highway also provides the primary access to the University of Maryland and Goddard Space Flight Center. In central Prince George's County, MD 193 is the main north–south highway connecting Glenn Dale and Greater Upper Marlboro with the affluent suburbs of Woodmore and Kettering.

Greenbelt is a city in Prince George's County, Maryland, United States, and a suburb of Washington, D.C. At the 2020 census, the population was 24,921.