The Menhirs of Kerzérho are located in the town of Erdeven, in Brittany, France. The menhirs date from the Neolithic period.
The menhirs are located along the RD781 departmental road, about 900 metres south-east of the church of Erdeven, towards the town of Plouharnel. The menhirs are freely accessible from the road.
The site is made up of 10 rows of 165 standing menhirs, cut through by the road connecting Erdeven and Plouharnel. The most imposing of them are concentrated in the western zone of the alignments.
The site originally consisted of more than 1,100 stones, spread over an area of more than 2 km long and 64 m wide. An old cromlech may have been erected, then destroyed during the development of the road.
Legend has it that the Menhirs of Kerzérho are the vanguard of the Roman soldiers petrified by Saint Cornély, and that the main body of the troops is constituted by the Carnac Megaliths.