Attica, a small, triangular peninsula on the Aegean coast of south-central Greece. It is historically famous as the district making up the ancient city-state of Athens; "Attic" is used to mean ancient Athenian. Attica at that time was bounded on the northwest by Boeotia and on the west by Megaris. Modern Attica, including Megaris, is a prefecture of Greece, with Athens as its capital and Piraeus as its chief port.

Important historic sites in Attica include Mount Pentelicus, famous for its white marble, and Mount Hymettus, for its blue. Eleusis was the scene of the Eleusian Mysteries (religious rites), and a road known as the Sacred Way connected Eleusis with Athens. Cape Sunium (Colonna), at the southern tip of the peninsula, was the point from which, according to legend, King Aegeus watched for his son Theseus to return from battling the Minotaur in Crete. The silver mines of Mount Laurium, near Cape Sunium, financed the building projects of Athens' Golden Age. Marathon, the plain where the Persians were repulsed in 490 B.C., is also in Attica.