Philadelphia
- Country: United States
- State: Pennsylvania
- Population: 1,567,872 (2016)
- Latitude: 39° 57.1' N (39.95234°)
- Longitude: 75° 9.8' W (-75.16379°)
- Elevation: 13 m/42 ft. above sea level
- Time zone: America/New_York (UTC -05:00); DST observed (UTC -04:00)
- Alternate names: Coaquannock, Filadelfia, Filadelfija, Ga-na-ta-jen-go-na, Quequenakee, Tsi wahswèn:to Tekahsó:ken