Phalerum or Phaleron (Ancient Greek: Φάληρον Phálēron [pʰálɛːron]; Greek: Φάληρο (Fáliro), [ˈFaliro]) was a port of Ancient Athens, 5 km southwest of the Acropolis of Athens,[1] on a bay of the Saronic Gulf.

Phalerum was the major port of Athens before Themistocles had the three rocky natural harbours by the promontory of Piraeus developed as alternative, from 491 BC.

[3] Recently, archaeologists have uncovered what appear to be traces of ancient Athens’s first port before the city’s naval and shipping centre was moved to Piraeus.

The site, some 350 m from the modern coastline, contained pottery, tracks from the carts that would have served the port, and makeshift fireplaces where travelers waiting to take ship would have cooked and kept warm.

The Park of Maritime Tradition, a collection of preserved historic ships, is located at the site.