Mareuil-sur-Ay (Mareuil-sur-Ay)
- former commune in Marne, France
- Country:
- Postal Code: 51160
- Coordinates: 49° 2' 53" N, 4° 1' 52" E
- GPS tracks (wikiloc): [Link]
- Area: 11.48 sq km
- Population: 1187
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q672746
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/03qd7tr]
- GeoNames ID: Alt: [6435886]
- BnF ID: [15262950z]
- VIAF ID: Alt: [150523562]
- Library of Congress authority ID: Alt: [no2010162425]
- PACTOLS thesaurus ID: [pcrtiiUy8mAtFH]
- MusicBrainz area ID: [19ea7b09-4bb1-4817-8d9d-417c6c5884e7]
- INSEE municipality code: 51347
Shares border with regions:


Chouilly
- commune in Marne, France
- Country:
- Postal Code: 51200
- Coordinates: 49° 1' 31" N, 4° 0' 50" E
- GPS tracks (wikiloc): [Link]
- Area: 16.12 sq km
- Population: 1017


Mutigny
- commune in Marne, France
- Country:
- Postal Code: 51160
- Coordinates: 49° 4' 0" N, 4° 1' 34" E
- GPS tracks (wikiloc): [Link]
- Area: 3.75 sq km
- Population: 195
- Web site: [Link]

Bisseuil
- former commune in Marne, France
- Country:
- Postal Code: 51150
- Coordinates: 49° 2' 43" N, 4° 5' 18" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 75 м m
- Area: 10.03 sq km
- Population: 639
- Web site: [Link]

Plivot
- commune in Marne, France
- Country:
- Postal Code: 51150
- Coordinates: 49° 1' 4" N, 4° 4' 13" E
- GPS tracks (wikiloc): [Link]
- Area: 12.6 sq km
- Population: 757
- Web site: [Link]

Avenay-Val-d'Or
- commune in Marne, France
- Country:
- Postal Code: 51160
- Coordinates: 49° 4' 9" N, 4° 2' 45" E
- GPS tracks (wikiloc): [Link]
- Area: 12.49 sq km
- Population: 988

Oiry
- commune in Marne, France
- Country:
- Postal Code: 51200
- Coordinates: 49° 1' 25" N, 4° 3' 2" E
- GPS tracks (wikiloc): [Link]
- Area: 10.76 sq km
- Population: 836
- Web site: [Link]