Cernay-en-Dormois

{{Use dmy dates|date=June 2021}}

{{Infobox French commune

|name = Cernay-en-Dormois

|commune status = Commune

|image = Brocante, Cernay. - panoramio.jpg

|caption = The church in Cernay-en-Dormois

|image coat of arms =

|arrondissement = Châlons-en-Champagne

|canton = Argonne Suippe et Vesle

|INSEE = 51104

|postal code = 51800

|mayor = Jean-Pierre Chapron{{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 =

|coordinates = {{coord|49.2269|4.7672|format=dms|display=inline,title}}

|elevation m = 128

|elevation min m =

|elevation max m =

|area km2 = 24.82

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

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

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

}}

Cernay-en-Dormois ({{IPA|fr|sɛʁnɛ ɑ̃ dɔʁmwa}}) is a commune in the Marne department in north-eastern France.