Gentilly may refer to:
France
- Gentilly, Val-de-Marne, a commune of the Val-de-Marne département
Canada
- Gentilly, Quebec, a suburb of the city of Bécancour
- Gentilly Nuclear Generating Station, a former nuclear power station in Bécancour, Quebec
United States
- Gentilly, New Orleans, Louisiana, a neighborhood
- Gentilly Township, Minnesota