canton of Lagny-sur-Marne (canton de Lagny-sur-Marne)
- canton of France
- Country:
- Capital: Lagny-sur-Marne
- Coordinates: 48° 52' 20" N, 2° 41' 38" E
- GPS tracks (wikiloc): [Link]
- Population: 65806
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q1574576
- Freebase ID: [/m/0288g6g]
- INSEE canton code: [7709]