District 15
- 15th Legislative District (New Jersey)
- 15th arrondissement of Marseille
- 15th arrondissement of Paris
- 15th district of Budapest
- Community Consolidated School District 15
- Connecticut
- Illinois
- Illinois's 15th congressional district
- Los Angeles City Council District 15
- Maine
- Maine School Administrative District 15
- Michigan's 15th congressional district
- New Brunswick School District 15
- Ohio's 15th congressional district
- Pennsylvania Senate, District 15
- Pennsylvania's 15th congressional district
- Regional School District 15
- Texas Senate, District 15
- Wisconsin Senate, District 15