Sommancourt

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

{{Infobox French commune

|name = Sommancourt

|commune status = Commune

|arrondissement = Saint-Dizier

|canton = Eurville-Bienville

|INSEE = 52475

|postal code = 52130

|mayor = Pascal Guillemin{{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 = CA Grand Saint-Dizier, Der et Vallées

|coordinates = {{coord|48.5044|5.0347|format=dms|display=inline,title}}

|elevation m = 245

|elevation min m = 198

|elevation max m = 267

|area km2 = 5.73

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

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

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

}}

Sommancourt ({{IPA|fr|sɔmɑ̃kuʁ}}) is a commune in the Haute-Marne department in north-eastern France.