|Regional unit:||Central Athens|
|Population statistics (as of 2001)|
|- Area:||2.850 km2 (1 sq mi)|
|- Density:||8,460 /km2 (21,912 /sq mi)|
|Time zone:||EET/EEST (UTC+2/3)|
|Elevation (center):||110 m (361 ft)|
|Postal code:||143 xx|
Nea Filadelfeia (Greek: Νέα Φιλαδέλφεια, meaning New Philadelphia) is a suburb in the northern part of Athens, Greece. Since the 2011 local government reform it is part of the municipality Filadelfeia-Chalkidona, of which it is the seat and a municipal unit.
The suburb was settled by Greek refugees from Anatolia (specifically the region around the ancient city of Philadelphia) after the Greco-Turkish War. The Cephissus and Kifissos Avenue/GR-1/E75 is located to the NW. It is located north of the neighborhood of Patissia. It is located S of Attiki Odos, WSW of Kifissia and W of Kifissias Avenue, W of Marathonos Avenue, N of Athens, NE of Peristeri, E of Kifissou Avenue and SE of Acharnes. The main street of the suburb is a road linking with Pefki, Dekeleia Avenue and Patission Avenue.
The area was made up of farmlands and forests. The forests have been partially saved in the many squares and in the several parks today. In the early to mid-20th century, urban development replaced much of the farmlands. Today, much of the municipality is urbanized while the businesses are along the main roads. Many of the trees are aligned with the streets and in the squares and parks of Nea Filadelfeia. The biggest park to be found is called Alsos Neas Filadelfias, which covers almost 480 square meters of land and hosts many different trees. In the past it used to be a zoo as well as a park.
Nea Filadelfeia has 9 Primary schools, 4 Secondary Schools (one of them is athletic type) and 3 High Schools. Among them is the 3rd High School of Nea Filadelfia "Miltos Kountouras", famous for the events and educational projects it frequently organizes through the school year.
- The AEK sports club was established in Nea Filadelfeia in 1924. In particular, the Nikos Goumas Stadium was the home ground of AEK Athens FC from 1930 to 2003.
- The Ionikos is renowned in Greece and abroad for its handball, volleyball and basketball achevements.
According to the Köppen Climate Classification system, Nea Filadelfeia, like most of Athens, has a warm-summer Mediterranean climate, abbreviated "Csa" on climate maps. Winters are mild with mean January temperatures above 8 degrees Celsius, while Summers can be particularly hot with mean maximum July temperatures in their mid 30's. Nea Filadelfeia is notorious in Greece for its summer heat and according to H.N.M.S it registers Greece's highest mean maximum summer temperatures for the period 1955-1997.In June 2007 the H.N.M.S station of Filadelfeia has registered 47.5°C. .For the 50 year period 1955-2004 the mean maximum July temperature for Nea Filadelfeia stands at 33.7°C 
|Climate data for Nea Filadelfia, 136 m asl (1955-1997)|
|Average high °C (°F)||12.5
|Average low °C (°F)||5.2
|Precipitation mm (inches)||56.9
|Source: Hellenic National Meteorological Service|
- Elena Nathanael, Greek actress
Sites of interest
- Nea Filadelfeia Ionikos Sports Center where the basketball, volleyball and handball teams Ionikos play. It is located at Sardeon and N. Trypia Streets.
- 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)
- Climate Summary for Nea Filadelfeia, Greece
- "Climatological Information for Nea Filadelfia, Greece", HNMS climatological table, web: .
|Agioi Anargyroi||Nea Ionia|