Trefcon

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

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

{{Infobox French commune

|name = Trefcon

|commune status = Commune

|image = Trefcon (Aisne) mairie-école.JPG

|caption = The town hall and school of Trefcon

|image coat of arms =

|arrondissement = Saint-Quentin

|canton = Saint-Quentin-1

|INSEE = 02747

|postal code = 02490

|mayor = Véronique Rozier{{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 = Pays du Vermandois

|coordinates = {{coord|49.8586|3.0961|format=dms|display=inline,title}}

|elevation m = 100

|elevation min m = 61

|elevation max m = 98

|area km2 = 4.02

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

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

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

}}

Trefcon ({{IPA|fr|tʁɛfkɔ̃}}) is a commune in the Aisne department in Hauts-de-France in northern France.

An old alternative name was Saint-Martin-des-Prés.{{cite web | title=Trefcon (Aisne) | website=Archives départementales de l'Aisne | url=https://archives.aisne.fr/archive/catalogue/listecommunes/trefcon--aisne- | language=fr | access-date=21 October 2021}} Named after the old ruined church of the same name.{{cite web | title=St Martin des prés | website=Omignon.fr | url=http://www.omignon.fr/Eglises/Trefcon/St_Martin_des_pr%C3%A8s/Eglise_Pr%C3%A9sent_StMartin.htm | language=fr | archive-url=https://web.archive.org/web/20160304072507/http://www.omignon.fr/Eglises/Trefcon/St_Martin_des_pr%C3%A8s/Eglise_Pr%C3%A9sent_StMartin.htm | archive-date=2016-03-04}}