Lachy (Lachy)
- commune in Marne, France
- Country:
- Postal Code: 51120
- Coordinates: 48° 46' 8" N, 3° 42' 25" E
- GPS tracks (wikiloc): [Link]
- Area: 16.89 sq km
- Population: 321
- Web site: http://lachy.1001villages.com/
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q1220187
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/03qd7hf]
- GeoNames ID: Alt: [6435859]
- SIREN number: [215102922]
- BnF ID: [152629174]
- INSEE municipality code: 51313
Shares border with regions:

Les Essarts-lès-Sézanne
- commune in Marne, France
- Country:
- Postal Code: 51120
- Coordinates: 48° 45' 10" N, 3° 39' 6" E
- GPS tracks (wikiloc): [Link]
- Area: 16.79 sq km
- Population: 263

Charleville, Marne
- commune in Marne, France
- Country:
- Postal Code: 51120
- Coordinates: 48° 48' 44" N, 3° 40' 2" E
- GPS tracks (wikiloc): [Link]
- Area: 17.67 sq km
- Population: 249

La Villeneuve-lès-Charleville
- commune in Marne, France
- Country:
- Postal Code: 51120
- Coordinates: 48° 48' 30" N, 3° 41' 41" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 216 м m
- Area: 11.17 sq km
- Population: 114


Mœurs-Verdey
- commune in Marne, France
- Country:
- Postal Code: 51120
- Coordinates: 48° 43' 38" N, 3° 40' 41" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 207 м m
- Area: 13.18 sq km
- Population: 321

Broyes
- commune in Marne, France
- Country:
- Postal Code: 51120
- Coordinates: 48° 45' 31" N, 3° 45' 57" E
- GPS tracks (wikiloc): [Link]
- Area: 15.24 sq km
- Population: 364


Sézanne
- commune in Marne, France
- Country:
- Postal Code: 51120
- Coordinates: 48° 43' 8" N, 3° 43' 22" E
- GPS tracks (wikiloc): [Link]
- AboveSeaLevel: 148 м m
- Area: 22.82 sq km
- Population: 4996
- Web site: [Link]