Roncey

{{Use dmy dates|date=August 2023}}

{{Infobox French commune

|name = Roncey

|commune status = Commune

|image = Mairie Roncey.jpg

|caption = The town hall

|arrondissement = Coutances

|canton = Quettreville-sur-Sienne

|INSEE = 50437

|postal code = 50210

|mayor = Alain Lechevallier{{cite web|title=Répertoire national des élus: les maires|url=https://www.data.gouv.fr/fr/datasets/r/2876a346-d50c-4911-934e-19ee07b0e503|website=data.gouv.fr, Plateforme ouverte des données publiques françaises|date=2 December 2020|language=fr}}

|term = 2020–2026

|intercommunality = Coutances Mer et Bocage

|coordinates = {{coord|48.9903|-1.3322|format=dms|display=inline,title}}

|elevation m = 90

|elevation min m = 33

|elevation max m = 131

|area km2 = 12.15

|population = {{France metadata Wikidata|population_total}}

|population date = {{France metadata Wikidata|population_as_of}}

|population footnotes = {{France metadata Wikidata|population_footnotes}}

|demonym = Roncyais

}}

Roncey ({{IPA|fr|ʁɔ̃sɛ}}) is a commune in the Manche department in Normandy in north-western France.