The University of Sussex is a public research university located in Falmer, East Sussex, England. It lies mostly within the city boundaries of Brighton and Hove. Its large campus site is surrounded by the South Downs National Park, and provides convenient access to central Brighton 5.5 kilometres (3.4 mi) away. The university received its royal charter in August 1961, the first of the plate glass university generation.

Falmer is a small village and civil parish in the Lewes District of East Sussex, England, lying between Brighton and Lewes, approximately five miles (8 km) north-east of the former. It is also the site of Brighton & Hove Albion's Falmer Stadium.