Sud-Ouest (French for southwest) may refer to:

Places Sud-Ouest Region (Burkina Faso), the Burkina Faso region Sud-Ouest Region (Cameroon), the Cameroon region Ile du Sud-Ouest, an isle in the Cosmoledo atoll Le Sud-Ouest, a borough in Montreal, Quebec Province du Sud-Ouest, the Southwest Province in Cameroon Rivière du Sud-Ouest, rivers in Quebec

Companies Sud Ouest (newspaper), a newspaper CIT du Sud-Ouest (CITSO), a bus company SNCASO (Société nationale des constructions aéronautiques du sud-ouest), a French former aircraft manufacturer

See also Southwest (disambiguation) South West France (disambiguation)