Ambar may refer to:
- Hambar, a Balkan or Central European building for drying maize
- Arda (Middle-earth), the fictional elvish name of the planet Earth in J. R. R. Tolkien's stories of Middle-earth
- AmBAR, American Business Association of Russian Professionals
- Ambar - Ideas on Paper S.A., Portuguese stationery producing and commercialising company
- Ambar, Pakistan, a small village in Swabi District of the North West Frontier Province of Pakistan.