Rosselló () or Roussillon () is a historical and cultural Catalan comarca (county) of Northern Catalonia (France). Its capital and most populated city is Perpignan (Catalan: Perpinyà).
It borders the counties of Alt EmpordÃÂ (Southern Catalonia) and Vallespir to the south and Conflent to the west, as well as the Occitan region of Languedoc to the north and north-west.
Rosselló has an area of 1,498 kmò. In 1990, Rosselló had a population of 303,850 inhabitants, with a density of 202.8 people per kmò.
It comprises part of the historic county and province of Roussillon.