Notre-Dame-de-la-Mer () is a commune in the Yvelines department in the Île-de-France region in north-central France. It was established on 1 January 2019 by merger of the former communes of Jeufosse (the seat) and Port-Villez.Arrêté préfectoral 27 September 2018

See also Communes of the Yvelines department

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