Bretteville-sur-Laize (French pronunciation: [bʁɛtvil syʁ lɛz] ⓘ) is a commune in the Calvados department in the Normandy region in northwestern France.

The scene of heavy fighting following the Normandy landings, much of the town is of post-World War II construction.

The Commune with another 20 communes shares part of a 2,115 hectare, Natura 2000 conservation area, called the Vallée de l'Orne et ses affluents.

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