Pagae (Greek: Παγαί) was an ancient Greek harbour in Megaris, on the Gulf of Corinth.
In 461 BC, Pagae was occupied by Athens because they wanted a naval base of operations on the Gulf of Corinth. With the peace treaty between Athens and Sparta, Pagae came under the influence of Megara.
From 193 BC Pagae was a member of the Achaean League.
When Pausanias visited Pagae, a remarkable bronze image of Artemis Soteira was shown to him.
According to some sources of greek mythology Pagae had been the home town of Tereus.
Remains of the city walls can be seen today near the modern village of Alepochóri.