Kaltag
- Country: United States
- State: Alaska
- Population: 185 (2016)
- Latitude: 64° 19.6' N (64.32722°)
- Longitude: 158° 43.3' W (-158.72194°)
- Elevation: 13 m/41 ft. above sea level
- Time zone: America/Anchorage (UTC -09:00); DST observed (UTC -08:00)
- Alternate names: Ggaal Doh, Kahltog, Kchaltak, Kkhaltel, Upper Kaltag