Zereia (), also known as Zeira, was a town of Chalcidice, in ancient Macedonia.
It probably belonged to the Delian League since it appears in the tribute registry of Athens for the year 422/1 BCE, where it had to pay a phoros of 500 drachmas although it does not appear in any other tribute registry.
It has been suggested that it is related to a passage from Stephanus of Byzantium that collects a fragment of Theopompus that mentions the Zeranians (ÃÂ÷ÃÂìýùÿù) located in Thrace and another fragment of Ephorus that indicates the name of the region of Zerania (ÃÂ÷ÃÂñýïñ).
Its site is unlocated.