The University of Portsmouth (UoP) is a public university in Portsmouth, England. Comprising five faculties, the university offers a wide range of academic disciplines. With around 28,280 students enrolled in undergraduate and postgraduate programs, the university in 2022 was the 25th-largest higher education institution by student enrolments in the United Kingdom. The university employed approximately 3,500 staff in 2020.

Portsmouth is a port city and unitary authority in Hampshire, England. Most of Portsmouth is located on Portsea Island, off the south coast of England in the Solent. This means Portsmouth is the only English city not located primarily on the mainland. Located 74 miles (119 km) south-west of London, 50 miles (80 km) west of Brighton and Hove, and 22 miles (35 km) south-east of Southampton; Portsmouth is part of the South Hampshire conurbation. It is the most densely populated city in the United Kingdom, with a population last recorded at 208,100.