Landunvez (; ) is a commune in the Finistère department of Brittany in north-western France. Landunvez is twinned with the town of Bradninch in Devon, UK.
Inhabitants of Landunvez are called in French Landunvéziens.
Eliane Le Breton (1897âÂÂ1977) physiologist, born in Landunvez