Agia (Greek: Αγιά) is a rock in the Meteora rock formation complex of Thessaly, Greece. The rock overlooks the town of Kalabaka.

The peak of Agia stands at a height of 630 m (2,070 ft) above sea level.

The main rock known as Megali Agia, or "Large Aya." The lower part is called Mikri Agia (Μικρή Αγιά), or "Small Aya."