Oust-Marest (Oust-Marest)
- commune in Somme, France
- Country:
- Postal Code: 80460
- Coordinates: 50° 2' 35" N, 1° 27' 32" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 15 м m
- Area: 5.8 sq km
- Population: 629
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q490541
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/03qmrk3]
- GeoNames ID: Alt: [6617760]
- SIREN number: [218005783]
- BnF ID: [15277089x]
- INSEE municipality code: 80613
Shares border with regions:

Bouvaincourt-sur-Bresle
- commune in Somme, France
- Country:
- Postal Code: 80220
- Coordinates: 50° 1' 51" N, 1° 29' 22" E
- GPS tracks (wikiloc): [Link]
- Area: 6.82 sq km
- Population: 836

Saint-Quentin-la-Motte-Croix-au-Bailly
- commune in Somme, France
- Country:
- Postal Code: 80880
- Coordinates: 50° 4' 25" N, 1° 27' 7" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 109 м m
- Area: 6.91 sq km
- Population: 1297

Méneslies
- commune in Somme, France
- Country:
- Postal Code: 80520
- Coordinates: 50° 3' 29" N, 1° 29' 47" E
- GPS tracks (wikiloc): [Link]
- Area: 4.04 sq km
- Population: 313

Ponts-et-Marais
- commune in Seine-Maritime, France
- Country:
- Postal Code: 76260
- Coordinates: 50° 2' 38" N, 1° 26' 44" E
- GPS tracks (wikiloc): [Link]
- Area: 5.9 sq km
- Population: 770