Magnesia may refer to:
- Magnesia (hypothetical city), a future colony of Knossos, imagined in Plato's Laws
- Magnesia (regional unit), the southeastern area of Thessaly in central Greece
- Ancient Magnesia, a historical region of Greece with borders differing from the modern regional unit
- Magnesia ad Sipylum, a city of Lydia, now Manisa in Turkey
- Battle of Magnesia, 190 BC, the concluding battle of the Roman–Seleucid War
- Magnesia on the Maeander, an ancient Greek city in Anatolia
- Magnesia Prefecture, a former prefecture of Greece
Chemistry
- Magnesium oxide
- Periclase or magnesia, a natural mineral of magnesium oxide
See also
- Magnesian limestone (disambiguation)
- Magnesium
- Milk of magnesia, a suspension of magnesium hydroxide
This disambiguation page lists articles associated with the title Magnesia.If an internal link led you here, you may wish to change the link to point directly to the intended article. Categories: