Agioi Theodoroi (Greek: Άγιοι Θεόδωροι) is a town and a former municipality in Corinthia, Peloponnese, Greece.

[4] The well known "Pefkakia", an organized beach is in the eastern part of the town with many pine trees and golden sand.

The west is bounded by the massive Corinth Refinery which is the country's largest industrial complex operated by Motor Oil Hellas with the Kalamaki hills and mountains dominating the northern part, and the Attica boundary with Kineta to its east.

Important discoveries were made like a statue of Apollo, many black-figured vases, geometric and lakoeideis graves.

The area was known from the legend of Faias, the fearsome boar that the legendary hero Theseus killed on his way from Trizina to Athens.