Gillonnay

{{Expand French|topic=geo|date=December 2009|Gillonnay}}

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

{{Infobox French commune

|name = Gillonnay

|commune status = Commune

|image = Gillonnay, la rue, arrèt du tramway en 1908, p 92 de L'Isère les 533 communes.jpg

|caption = Gillonnay in 1908

|image coat of arms =

|arrondissement = Vienne

|canton = Bièvre

|INSEE = 38180

|postal code = 38260

|mayor = Jean-Paul Jullien-Vieroz{{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 = Bièvre Isère

|coordinates = {{coord|45.3936|5.2978|format=dms|display=inline,title}}

|elevation m = 380

|elevation min m = 346

|elevation max m = 633

|area km2 = 14.29

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

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

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

}}

Gillonnay ({{IPA|fr|ʒijɔnɛ}}) is a commune in the Isère department in southeastern France.