Mourmelon-le-Petit (Mourmelon-le-Petit)
- commune in Marne, France
- Country:
- Postal Code: 51400
- Coordinates: 49° 7' 47" N, 4° 18' 34" E
- GPS tracks (wikiloc): [Link]
- Area: 12.19 sq km
- Population: 804
- Web site: http://mourmelonlepetit.com
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q1103472
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/03qd8bl]
- GeoNames ID: Alt: [6435914]
- SIREN number: [215103623]
- BnF ID: [152629906]
- Trismegistos Geo ID: [24062]
- INSEE municipality code: 51389
Shares border with regions:

Baconnes
- commune in Marne, France
- Country:
- Postal Code: 51400
- Coordinates: 49° 9' 34" N, 4° 20' 18" E
- GPS tracks (wikiloc): [Link]
- Area: 20.86 sq km
- Population: 277

Sept-Saulx
- commune in Marne, France
- Country:
- Postal Code: 51400
- Coordinates: 49° 8' 57" N, 4° 15' 12" E
- GPS tracks (wikiloc): [Link]
- Area: 18.3 sq km
- Population: 604
- Web site: [Link]

Mourmelon-le-Grand
- commune in Marne, France
- Country:
- Postal Code: 51400
- Coordinates: 49° 8' 27" N, 4° 21' 52" E
- GPS tracks (wikiloc): [Link]
- Area: 23.21 sq km
- Population: 5281
- Web site: [Link]

Livry-Louvercy
- commune in Marne, France
- Country:
- Postal Code: 51400
- Coordinates: 49° 6' 51" N, 4° 18' 28" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 102 м m
- Area: 30.74 sq km
- Population: 1122
- Web site: [Link]