Larmor-Baden (French pronunciation: [laʁmɔʁ badɛn]; Breton: An Arvor-Baden) is a commune in the Morbihan department of Brittany in northwestern France.

[3] The inhabitants of Larmor-Baden are called in French Larmoriens.

In reality Berder is not a true island as it is attached to the mainland by submerged land that shows at low tide.

The name Berder comes from the Breton word Breudeur, meaning brothers.

This Morbihan geographical article is a stub.