Oia is a community on the islands of Thira (Santorini) and Therasia, in the Cyclades, Greece. The community shares the island of Thira with the Municipality of Thira (Santorini), and is centered in the northwesternmost part of the island.

Oia remains one of the foremost tourist attractions of the Aegean Sea. The famous Oia sunset, considered by many as one of the most beautiful in the world, keeps tourists flocking down to the castle, waiting for the moment when the sun slips down on the calm sea of the caldera. Tourists are often told that the fishing docks at Oia are the oldest continually used docks in the world, supposedly being in service for 3000 years.

Wikipedia articles for Oia

• Oia, Greece
• Therasia