Tagnon

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

{{Expand French|topic=geo|date=December 2008|Tagnon}}

{{Infobox French commune

|name = Tagnon

|commune status = Commune

|image = Tagnon (08 Ardennes) - Église Saint- Pierre - Photo Francis Neuvens lesardennesvuesdusol.fotoloft.fr jpg.JPG

|caption = The church in Tagnon

|arrondissement = Rethel

|canton = Château-Porcien

|INSEE = 08435

|postal code = 08300

|mayor = Monique Misset{{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=13 September 2022|language=fr}}

|term = 2020–2026

|intercommunality = Pays Rethélois

|coordinates = {{coord|49.4403|4.2908|format=dms|display=inline,title}}

|elevation m = 105

|elevation min m = 83

|elevation max m = 148

|area km2 = 23.97

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

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

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

}}

Tagnon ({{IPA|fr|taɲɔ̃}}) is a commune in the Ardennes department in northern France.