Paris West University Nanterre La Défense (Université Paris Ouest Nanterre La Défense) formerly called "Paris X Nanterre" is a French university in the Academy of Versailles. It is one of the most prestigious French universities, mainly in the areas of law, humanities, political science, social sciences, and economics. It is one of the 13 successor universities of the University of Paris. It is located in the western suburb of Nanterre, in the La Défense area, the business district of Paris. The university is commonly referred to as Nanterre.