The Pays de Caux (/ˈpeɪ də koʊ/, French pronunciation: [pei də ko], literally Land of Caux) is an area in Normandy occupying the greater part of the French département of Seine Maritime in Normandy. It is a chalk plateau to the north of the Seine Estuary and extending to the cliffs on the English Channel coast; its coastline is known as the Côte d'Albâtre. In the east, it borders on the Pays de Bray where the strata below the chalk show through.
Cauchois is a notable dialect of the Norman language. The Pays de Caux is one of the remaining strongholds of the Norman language outside the Cotentin (or Cherbourg) peninsula.
The principal communities are Le Havre, Dieppe, Fécamp, Yvetot, and Étretat.