Krag may refer to:
- Krag (Ninjago), a character in Ninjago
- Krag (surname)
- Firearms associated with Ole Herman Johannes Krag:
- Krag–Jørgensen rifle
- Krag–Petersson rifle
- .30-40 Krag
- Krag–Jørgensen pistol
- Krag Mountains, Canada
- Krag, British Columbia, a ghost town in Canada