Old Québec (French: Vieux-Québec) is a historic neighbourhood of Quebec City, the capital of the province of Quebec in Canada. Comprising the Upper Town (French: Haute-Ville) and Lower Town (French: Basse-Ville), the area is a UNESCO World Heritage Site. Administratively, Old Quebec is part of the Vieux-Québec–Cap-Blanc–colline Parlementaire district in the borough of La Cité-Limoilou.

The area is sometimes referred to as the Latin Quarter (French: Quartier latin), but this title refers more to area around the Séminaire de Québec, the original site of Laval University.