|Population statistics (as of 2001)|
|- Area:||98.030 km2 (38 sq mi)|
|- Density:||61 /km2 (157 /sq mi)|
|Time zone:||EET/EEST (UTC+2/3)|
|Elevation (center):||1 m (3 ft)|
|Postal code:||200 03|
Agioi Theodoroi (Greek: Άγιοι Θεόδωροι) is a town and a former municipality in Corinthia, Peloponnese, Greece. Since the 2011 local government reform it is part of the municipality Loutraki-Agioi Theodoroi, of which it is a municipal unit. It is a suburb of Athens, located around 12 km east of Corinth and about 63 km W of Athens in the easternmost part of Corinthia. Its population was 5,960 inhabitants at the 2001 census. It has one toll interchange with GR-8A. It has a rail connection to Athens, Corinth and the Athens international airport via the suburban railway station "Agioi Theodoroi". The south contains beach, the well known "Pefkakia", an organized beach in the eastern part of the town. The west is bounded by the Corinth Refinery with the Kalamaki hills and mountains dominating the northern part, and the Attica boundary with Kineta to its east. The municipality is bounded with Loutraki in the west and Megara in the east. Agricultural used to dominate before the 1960s and the 1970s. Now most of the agricultural land is in the north and the east. Some houses are summer homes. A beautiful pedestrian street by the sea, many coffee shops, restaurants and beach bars are lining the sea front of the town.
Northwest of the city of Ag. Theodoroi, in 1961, archaeologists unearthed the ruins of ancient Krommyona. Important discoveries were made like a statue of Apollo, many black-figured vases, geometric and lakoeideis graves. According to Stravona, the entire coastal region of the Saronic and the Eleusinian Gulf was named Krommyona. Krommyona until the 6th century. BC belonged to Megara and then to Corinth.
There are two versions of the name of the ancient Krommyonas. The first version is that it got its name because of the onion production and the second version is that it got its name from the son of Poseidon Krommo.
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.
An important finding is also a small circular area which has not been determined whether it was a worship place or a small orchestra theater.
Agioi Theodoroi is served by Athens - Patras highway and a rail station of proastiakos connecting it directly to the city of Athens, to the airport "Eleftherios Venizelos" of Athens and Corinth. Also intercity buses between Athens and the Peloponese stop here and touristic buses during the summer period.
- De Facto Population of Greece Population and Housing Census of March 18th, 2001 (PDF 793 KB). National Statistical Service of Greece. 2003.
- Kallikratis law Greece Ministry of Interior (Greek)