La Grève-sur-Mignon

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

{{Expand French|topic=geo|date=December 2008|La Grève-sur-Mignon}}

{{Infobox French commune

|name = La Grève-sur-Mignon

|commune status = Commune

|image = 345 - Mairie - La Grève sur Mignon.jpg

|caption = The town hall in La Grève-sur-Mignon

|arrondissement = La Rochelle

|canton = Marans

|INSEE = 17182

|postal code = 17170

|mayor = Nicolas Boncens{{cite web|title=Répertoire national des élus: les maires|url=https://www.data.gouv.fr/fr/datasets/r/2876a346-d50c-4911-934e-19ee07b0e503|publisher=data.gouv.fr, Plateforme ouverte des données publiques françaises|date=12 March 2025|language=fr}}

|term = 2024–2026

|intercommunality =

|coordinates = {{coord|46.2514|-0.7625|format=dms|display=inline,title}}

|elevation m = 8

|elevation min m = 1

|elevation max m = 31

|area km2 = 11.48

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

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

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

}}

La Grève-sur-Mignon ({{IPA|fr|la ɡʁɛv syʁ miɲɔ̃}}) is a commune in the Charente-Maritime department in southwestern France.

Before 1928, it was known as Saint-Martin-de-Villeneuve.{{Cassini-Ehess|33398|La Grève-sur-Mignon}}