Landéda (French pronunciation: [lɑ̃deda]; Breton: Landeda) is a commune in the Finistère department of Brittany in north-western France.

The coastal commune of Landéda forms a peninsula between two rias, the Aber Wrac'h to the north and the Aber-Benoît to the south.

Landeda is the base for the high-speed rescue motorboat located at the port of Aber Wrac'h.

It includes a marina managed by the Chamber of Commerce and Industry of Brest.

Other notable sights include an abbey, a manor, many stone crosses and islands with ancient ruins.