Amasia
Amasia may refer to:
- Amasya, a town in Northern Turkey
- Amasea (titular see)
- Amasia (raion), former administrative district of Soviet Armenia
- Amasia, Shirak, a town in Armenia
- Amasia, Armavir, a town in Armenia
- A Latin name for the Ems (river), a river in Germany and the Netherlands
- Amasia (continent), a projection for the Earth's next supercontinent