Maniots in the context of Tower houses in the Balkans

Gytheio (Greek: Γύθειο [ˈʝiθio]) or Gythio, also the ancient Gythium or Gytheion (Ancient Greek: Γύθειον), is a town on the eastern shore of the Mani Peninsula in the Peloponnese of southern Greece, in the historical and administrative region of Laconia. It is the largest and most important town in Mani. Gytheio is the seat of the municipality of East Mani. Gytheio is significant in the history of Mani and the Maniots.

Ancient Gytheio was the seaport of Ancient Sparta, approximately 40 kilometres (25 miles) north. Gytheio continued to be a major port until its destruction in the 4th century CE, possibly by an earthquake. Its strategic location made it a coveted possession for foreign powers into the 20th century.

The Mani Peninsula is a geographical and cultural region of the Peloponnese in southern Greece. It is often referred to as Mani (Greek: Μάνη) or "the Mani". The inhabitants of Mani are known as Maniots (Mανιάτες, Maniátes). A Maniot tradition claims they descend from the ancient Spartans. Mani and the Maniots played a key role in the Greek War of Independence that began in 1821.

The Mani is the central of the three peninsulas extending southwards from the Peloponnese into the Mediterranean Sea. To Mani's east lie the Laconian Gulf and the peninsula of Cape Maleas, and to its west, the Messenian Gulf and the peninsula of Messenia. The Mani Peninsula is the southern extension of the Taygetus mountain range. It is about 45 km (28 mi) long, with a rocky, rugged, interior bordered by scenic coastlines. Mani terminates at Cape Matapan, the southernmost point of continental Greece.