Saint-Augustin, Charente-Maritime

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

{{Expand French|topic=geo|date=December 2008|Saint-Augustin (Charente-Maritime)}}

{{Infobox French commune

|name = Saint-Augustin

|commune status = Commune

|image = Eglise de St Augustin.jpg

|caption = The church in Saint-Augustin

|image coat of arms = Blason de la commune de Saint-Augustin - 17570 - France.jpg

|arrondissement = Rochefort

|canton = La Tremblade

|INSEE = 17311

|postal code = 17570

|mayor = Gwennaëlle Dohin-Prost{{cite web|title=Répertoire national des élus: les maires|url=https://www.data.gouv.fr/en/datasets/r/2876a346-d50c-4911-934e-19ee07b0e503|website=data.gouv.fr, Plateforme ouverte des données publiques françaises|date=9 August 2021|language=fr}}

|term = 2020–2026

|intercommunality = CA Royan Atlantique

|coordinates = {{coord|45.6789|-1.0981|format=dms|display=inline,title}}

|elevation m = 10

|elevation min m = 0

|elevation max m = 45

|area km2 = 18.83

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

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

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

}}

Saint-Augustin ({{IPA|fr|sɛ̃.t‿oɡystɛ̃|-|LL-Q150 (fra)-Xenophôn-Saint-Augustin.wav}}) is a commune in the Charente-Maritime department in southwestern France.