Élancourt (Élancourt)
- commune in Yvelines, France
- Country:
- Postal Code: 78990
- Coordinates: 48° 46' 6" N, 1° 56' 58" E
- GPS tracks (wikiloc): [Link]
- Area: 8.51 sq km
- Population: 25504
- Web site: http://www.ville-elancourt.fr
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q240546
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/09mxmn]
- Freebase ID: [/m/09mxmn]
- GeoNames ID: Alt: [3020310]
- GeoNames ID: Alt: [3020310]
- SIREN number: [217802081]
- SIREN number: [217802081]
- BnF ID: [12261612x]
- BnF ID: [12261612x]
- VIAF ID: Alt: [245396577]
- VIAF ID: Alt: [245396577]
- MusicBrainz area ID: [1942c0e8-244a-42db-8d90-49befcf989db]
- MusicBrainz area ID: [1942c0e8-244a-42db-8d90-49befcf989db]
- Gran Enciclopèdia Catalana ID: [0023695]
- Gran Enciclopèdia Catalana ID: [0023695]
- Twitter username: Alt: [VilleElancourt]
- Twitter username: Alt: [VilleElancourt]
- INSEE municipality code: 78208
- INSEE municipality code: 78208
Shares border with regions:

Jouars-Pontchartrain
- commune in Yvelines, France
- Country:
- Postal Code: 78760
- Coordinates: 48° 48' 11" N, 1° 54' 5" E
- GPS tracks (wikiloc): [Link]
- Area: 9.65 sq km
- Population: 5476
- Web site: [Link]

Trappes
- commune in Yvelines, France
- Country:
- Postal Code: 78190
- Coordinates: 48° 46' 36" N, 2° 0' 6" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 168 м m
- Area: 13.47 sq km
- Population: 32346
- Web site: [Link]

Plaisir
- commune in Yvelines, France
- Country:
- Postal Code: 78370
- Coordinates: 48° 49' 4" N, 1° 56' 47" E
- GPS tracks (wikiloc): [Link]
- Area: 18.68 sq km
- Population: 31857
- Web site: [Link]

La Verrière
- commune in Yvelines, France
- Country:
- Postal Code: 78320
- Coordinates: 48° 45' 31" N, 1° 57' 44" E
- GPS tracks (wikiloc): [Link]
- Area: 1.77 sq km
- Population: 6011
- Web site: [Link]

Le Mesnil-Saint-Denis
- commune in Yvelines, France
- Country:
- Postal Code: 78320
- Coordinates: 48° 44' 37" N, 1° 57' 47" E
- GPS tracks (wikiloc): [Link]
- Area: 8.95 sq km
- Population: 6714
- Web site: [Link]


Maurepas
- commune in Yvelines, France
- Country:
- Postal Code: 78310
- Coordinates: 48° 45' 46" N, 1° 56' 44" E
- GPS tracks (wikiloc): [Link]
- Area: 8.32 sq km
- Population: 18840
- Web site: [Link]