Athens Riviera (Greek: Αθηναϊκή Ριβιέρα) is the coastal area in the southern suburbs of Athens, Greece from Piraeus to Sounio and Lavrio. It is located about 16 km (9.9 mi) from downtown Athens stretching from the southern suburbs of Athens to the southernmost points of Attica.

Since the 1920s the Greek government planned for a regeneration of the Riviera but the political instability did not allow it. In 1954, Kathimerini newspaper published an article arguing that Glyfada and Voula could become more popular than the French Riviera in the coming years. In 1957, the plan for the development of the Athens Riviera started with the creation of Asteria in Glyfada and the area started gradually to become popular among the Athenians also through the help of Greek cinema. Plans to erect the highest building in Greece which will be called the Athens Riviera Tower are currently underway.

Piraeus has been inhabited since the 26th century BC. In ancient Greece, Piraeus assumed its importance with its three deep-water harbours, the main port of Cantharus and the two smaller of Zea and Munichia, and gradually replaced the older and shallow Phaleron harbour, which fell into disuse. In 493 BC, Themistocles initiated the fortification works in Piraeus and later advised the Athenians to take advantage of its natural harbours' strategic potential instead of using the sandy bay of Phaleron. After the second Persian invasion of Greece, Themistocles fortified the three harbours of Piraeus and created the neosoikoi (ship houses); the Themistoclean Walls were completed in 471 BC, turning Piraeus into a great military and commercial harbour.

The city's fortification was farther reinforced later by the construction of the Long Walls under Cimon and Pericles, with which secure port's (Piraeus) route to Athens main city. Meanwhile, Piraeus was rebuilt to the famous grid plan of architect Hippodamus of Miletus, known as the Hippodamian plan, and the main agora of the city was named after him in honour. As a result, Piraeus flourished and became a port of high security and great commercial activity, and a city bustling with life.

During the Peloponnesian War, Piraeus suffered its first setback. In the second year of the war, the first cases of the Athens plague were recorded in Piraeus. In 404 BC, the Spartan fleet under Lysander blockaded Piraeus and subsequently, Athens surrendered to the Spartans, putting an end to the Delian League and the war itself. After the reinstatement of democracy, Conon rebuilt the walls in 393 BC, founded the temple of Aphrodite Euploia and the sanctuary of Zeus Sotiros and Athena, and built the famous Skeuotheke (arsenal) of Philon, the ruins of which have been discovered at Zea harbour.

The reconstruction of Piraeus went on during the period of Alexander the Great, but this revival of the town was quashed by Roman Lucius Cornelius Sulla, who captured and totally destroyed Piraeus in 86 BC. The destruction was completed in 395 AD by the Goths under Alaric I. Piraeus was led to a long period of decline which lasted for fifteen centuries. During the Byzantine period the harbor of Piraeus was occasionally used for the Byzantine fleet, but it was very far from the capital city of Constantinople.

In Vouliagmeni ruins of the Temple of Apollo Zoster have been excavated and can be viewed inside the public Astir Hotel beach. According to legend, when Leto was about to give birth to Apollo and Artemis, she fled writhing in pain to Delos. Other remnants of early human habitation found in the Riviera include Neolithic and Bronze Age building foundations, and a 5th-century BC outpost.

In ancient times, Glyfada was a deme known as Aixone (Αἰξωνή). Today, Glyfada is packed with some of the capital's best-known nightclubs, upscale restaurants, and shops. It could be argued to be one of the most "Americanized" of Athenian municipalities since an American airbase was located in nearby Elliniko until the early 1990s.