Kos Roman Odeon is located on the outskirts of Kos Town.
The odeon was built by the Romans in the 2nd or 3rd century along with a gymnasium and baths. The first nine rows of the seating are carved out of marble and were used by the most important citizens. A landing divides the next seating area which are carved out of granite for the regular population. Statues graced the amphitheater.
The Odeon was discovered in the 20th century along with the gym and baths. The odeon was partly restored, the floors, wings, stage and the orchestra pit remain in good condition. Statues were found on the site.