Which sea is bounded by Greece to the west and Turkey to the east?

The sea bounded by Greece to the west and Turkey to the east is the Aegean Sea.

The Aegean is an elongated embayment of the northeastern Mediterranean, lying between the Greek mainland and the Anatolian peninsula. It covers roughly 214,000 square kilometres and contains more than 150 islands, including many of the Cyclades and the Dodecanese. To the north, it connects with the Sea of Marmara through the Dardanelles.

The region was central to Ancient Greek civilization. Its islands acted as stepping-stones for travel, trade, and cultural exchange between Europe and Asia. The sea also contains smaller named waters, including the Thracian Sea in the north, the Icarian Sea to the east, and the Sea of Crete to the south.

A common mix-up is the Ionian Sea, which lies west of mainland Greece. The Aegean is also associated with the long-running Greece–Turkey disputes over territorial waters, airspace, and maritime boundaries.