Ollainville (Ollainville)
- commune in Essonne, France
- Country:
- Postal Code: 91340
- Coordinates: 48° 35' 23" N, 2° 13' 9" E
- GPS tracks (wikiloc): [Link]
- Area: 11.33 sq km
- Population: 4714
- Web site: http://www.mairie-ollainville91.fr
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q247256
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/03mg_p_]
- Freebase ID: [/m/03mg_p_]
- GeoNames ID: Alt: [6446181]
- GeoNames ID: Alt: [6446181]
- SIREN number: [219104619]
- SIREN number: [219104619]
- BnF ID: [15280174p]
- BnF ID: [15280174p]
- INSEE municipality code: 91461
- INSEE municipality code: 91461
Shares border with regions:

Bruyères-le-Châtel
- commune in Essonne, France
- Country:
- Postal Code: 91680
- Coordinates: 48° 35' 34" N, 2° 11' 31" E
- GPS tracks (wikiloc): [Link]
- Area: 12.9 sq km
- Population: 3308
- Web site: [Link]

Égly
- commune in Essonne, France
- Country:
- Postal Code: 91520
- Coordinates: 48° 34' 50" N, 2° 13' 26" E
- GPS tracks (wikiloc): [Link]
- Area: 3.95 sq km
- Population: 5590
- Web site: [Link]

Linas
- commune in Essonne, France
- Country:
- Postal Code: 91310
- Coordinates: 48° 38' 0" N, 2° 16' 2" E
- GPS tracks (wikiloc): [Link]
- Area: 7.51 sq km
- Population: 6874
- Web site: [Link]

Saint-Germain-lès-Arpajon
- commune in Essonne, France
- Country:
- Postal Code: 91180
- Coordinates: 48° 35' 43" N, 2° 15' 20" E
- GPS tracks (wikiloc): [Link]
- Area: 6.31 sq km
- Population: 10282
- Web site: [Link]

Marcoussis
- commune in Essonne, France
- Country:
- Postal Code: 91460
- Coordinates: 48° 38' 30" N, 2° 13' 47" E
- GPS tracks (wikiloc): [Link]
- Area: 16.8 sq km
- Population: 8132
- Web site: [Link]

Arpajon
- commune in Essonne, France
- Country:
- Postal Code: 91290
- Coordinates: 48° 35' 25" N, 2° 14' 52" E
- GPS tracks (wikiloc): [Link]
- Area: 2.4 sq km
- Population: 10481
- Web site: [Link]