Greifenstein is a municipality in Germany.
It may also refer to the following castles:
- Burg Greifenstein in Austria
- Château de Greifenstein in Saverne, France
- Greifenstein Castle in Filisur, Switzerland
- Greifenstein Castle (Hesse) in Greifenstein, Germany
- Schloss Greifenstein in Heiligenstadt in Oberfranken, Germany
- Castel Greifenstein , a ruin near Bolzano, Italy