Béthencourt-sur-Mer (Béthencourt-sur-Mer)
- commune in Somme, France
- Country:
- Postal Code: 80530
- Coordinates: 50° 4' 41" N, 1° 30' 12" E
- GPS tracks (wikiloc): [Link]
- Area: 2.95 sq km
- Population: 992
- Web site: http://www.bethencourt-sur-mer.fr/
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q1156291
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/03m73kh]
- GeoNames ID: Alt: [6451333]
- SIREN number: [218000917]
- BnF ID: [15276580z]
- INSEE municipality code: 80096
Shares border with regions:

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

Allenay
- commune in Somme, France
- Country:
- Postal Code: 80530
- Coordinates: 50° 5' 12" N, 1° 29' 28" E
- GPS tracks (wikiloc): [Link]
- Area: 2.18 sq km
- Population: 270

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

Yzengremer
- commune in Somme, France
- Country:
- Postal Code: 80520
- Coordinates: 50° 3' 38" N, 1° 31' 4" E
- GPS tracks (wikiloc): [Link]
- Area: 3.4 sq km
- Population: 511


Tully
- commune in Somme, France
- Country:
- Postal Code: 80530
- Coordinates: 50° 5' 5" N, 1° 30' 58" E
- GPS tracks (wikiloc): [Link]
- Area: 1.88 sq km
- Population: 570