Fontoy

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

{{Infobox French commune

|name = Fontoy

|commune status = Commune

|image = mairie Fontoy.JPG

|caption = The town hall in Fontoy

|image coat of arms = Blason ville fr Fontoy (Moselle).svg

|arrondissement = Thionville

|canton = Algrange

|INSEE = 57226

|postal code = 57650

|mayor = Mathieu Weis{{cite web|title=Répertoire national des élus: les maires|url=https://www.data.gouv.fr/fr/datasets/r/2876a346-d50c-4911-934e-19ee07b0e503|website=data.gouv.fr, Plateforme ouverte des données publiques françaises|date=2 December 2020|language=fr}}

|term = 2020–2026

|intercommunality = CA Portes de France-Thionville

|coordinates = {{coord|49.3567|5.9958|format=dms|display=inline,title}}

|elevation m = 270

|elevation min m = 205

|elevation max m = 387

|area km2 = 16.88

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

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

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

}}

Fontoy ({{IPA|fr|fɔ̃twa}}; {{langx|de|Fentsch}}; Lorraine Franconian: Fensch) is a commune in the Moselle department in Grand Est in north-eastern France.

It contains the source of the Fensch river.