Fontenay-Mauvoisin (Fontenay-Mauvoisin)
- commune in Yvelines, France
- Country:

- Postal Code: 78200
- Coordinates: 48° 57' 51" N, 1° 39' 5" E

- GPS tracks (wikiloc): [Link]
- Area: 3.31 sq km
- Population: 380
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q641170
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/03qg4f0]
- Freebase ID: [/m/03qg4f0]
- GeoNames ID: Alt: [3017914]
- GeoNames ID: Alt: [3017914]
- SIREN number: [217802453]
- SIREN number: [217802453]
- BnF ID: [152759637]
- BnF ID: [152759637]
- MusicBrainz area ID: [2b1828bb-6ba2-457b-8211-662eb53722b9]
- MusicBrainz area ID: [2b1828bb-6ba2-457b-8211-662eb53722b9]
- INSEE municipality code: 78245
- INSEE municipality code: 78245
Shares border with regions:
Perdreauville
- commune in Yvelines, France
- Country:

- Postal Code: 78200
- Coordinates: 48° 57' 52" N, 1° 37' 43" E

- GPS tracks (wikiloc): [Link]
- Area: 11.18 sq km
- Population: 628
Soindres
- commune in Yvelines, France
- Country:

- Postal Code: 78200
- Coordinates: 48° 57' 26" N, 1° 40' 31" E

- GPS tracks (wikiloc): [Link]
- Area: 5.19 sq km
- Population: 672
Buchelay
- commune in Yvelines, France
- Country:

- Postal Code: 78200
- Coordinates: 48° 58' 47" N, 1° 40' 22" E

- GPS tracks (wikiloc): [Link]
- Area: 4.94 sq km
- Population: 3049
- Web site: [Link]
Favrieux
- commune in Yvelines, France
- Country:

- Postal Code: 78200
- Coordinates: 48° 56' 39" N, 1° 38' 32" E

- GPS tracks (wikiloc): [Link]
- Area: 3.18 sq km
- Population: 145
Jouy-Mauvoisin
- commune in Yvelines, France
- Country:

- Postal Code: 78200
- Coordinates: 48° 58' 31" N, 1° 38' 53" E

- GPS tracks (wikiloc): [Link]
- Area: 2.82 sq km
- Population: 556
Magnanville
- commune in Yvelines, France
- Country:

- Postal Code: 78200
- Coordinates: 48° 58' 2" N, 1° 40' 55" E

- GPS tracks (wikiloc): [Link]
- Area: 4.26 sq km
- Population: 5954
- Web site: [Link]