Saint-Fergeux

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

{{Expand French|topic=geo|date=December 2008|Saint-Fergeux}}

{{Infobox French commune

|name = Saint-Fergeux

|commune status = Commune

|image = Saint-Fergeux (Ardennes) Mairie-école.JPG

|caption = The town hall in Saint-Fergeux

|arrondissement = Rethel

|canton = Château-Porcien

|INSEE = 08380

|postal code = 08360

|mayor = David Vilain{{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 =

|coordinates = {{coord|49.5639|4.2136|format=dms|display=inline,title}}

|elevation m = 100

|elevation min m =

|elevation max m =

|area km2 = 25.5

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

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

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

}}

Saint-Fergeux is a commune in the Ardennes department in northern France.