Courmas (Courmas)
- commune in Marne, France
- Country:
- Postal Code: 51390
- Coordinates: 49° 11' 21" N, 3° 54' 31" E
- GPS tracks (wikiloc): [Link]
- Area: 2.87 sq km
- Population: 204
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q1390681
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/03qd63f]
- GeoNames ID: Alt: [6435773]
- SIREN number: [215101767]
- BnF ID: [152627972]
- INSEE municipality code: 51188
Shares border with regions:

Bouilly
- commune in Marne, France
- Country:
- Postal Code: 51390
- Coordinates: 49° 11' 55" N, 3° 53' 21" E
- GPS tracks (wikiloc): [Link]
- Area: 5.64 sq km
- Population: 188


Ville-Dommange
- commune in Marne, France
- Country:
- Postal Code: 51390
- Coordinates: 49° 12' 3" N, 3° 56' 1" E
- GPS tracks (wikiloc): [Link]
- Area: 3.4 sq km
- Population: 402


Chaumuzy
- commune in Marne, France
- Country:
- Postal Code: 51170
- Coordinates: 49° 10' 31" N, 3° 51' 51" E
- GPS tracks (wikiloc): [Link]
- Area: 19.94 sq km
- Population: 383

Marfaux
- commune in Marne, France
- Country:
- Postal Code: 51170
- Coordinates: 49° 10' 0" N, 3° 53' 36" E
- GPS tracks (wikiloc): [Link]
- Area: 6.75 sq km
- Population: 140


Sacy
- commune in Marne, France
- Country:
- Postal Code: 51500
- Coordinates: 49° 11' 50" N, 3° 56' 54" E
- GPS tracks (wikiloc): [Link]
- Area: 5.56 sq km
- Population: 379