Ahar is a city in East Azerbaijan Province, Iran
Ahar may also refer to:
- Ahar County, an administrative subdivision in East Azerbaijan Province, Iran
- Ahar, Tehran, a village in Tehran Province
- Ahar, Uttar Pradesh, a town in Uttar Pradesh, India
- Ahar, Rajasthan, a village in Rajasthan, India
- Ahar (caste), an Indian caste