The Paris Observatory, a research institution of the Paris Sciences et Lettres University, is the foremost astronomical observatory of France, and one of the largest astronomical centers in the world. Its historic building is on the Left Bank of the Seine in central Paris, but most of the staff work on a satellite campus in Meudon, a suburb southwest of Paris.

Paris Sciences et Lettres University is a public research university based in Paris, France. It was established in 2010 and formally created as a university in 2019. It is a collegiate university with 11 constituent schools, with the oldest founded in 1530. PSL is located in central Paris, with its main sites in the Latin Quarter, at the Montagne Sainte-Geneviève campus, at the Jourdan campus, at Porte Dauphine, and at Carré Richelieu.