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Agia Varvara Αγία Βαρβάρα  | 
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 Prophet Elias church in Agia Barbara 
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| Coordinates: 38°00′N 23°39′E / 38.000°N 23.650°ECoordinates: 38°00′N 23°39′E / 38.000°N 23.650°E | |
| Country | Greece | 
| Administrative region | Attica | 
| Regional unit | West Athens | 
| Government | |
| • Mayor | Georgios Kaplanis (PASOK/DIMAR) | 
| Area | |
| • Municipality | 2.425 km2 (0.936 sq mi) | 
| Elevation | 70 m (230 ft) | 
| Population (2011) | |
| • Municipality | 26,550 | 
| • Municipality density | 11,000/km2 (28,000/sq mi) | 
| Time zone | EET (UTC+2) | 
| • Summer (DST) | EEST (UTC+3) | 
| Postal code | 123 xx | 
| Area code(s) | 210 | 
| Vehicle registration | Z | 
| Website | www.agiavarvara.gr | 
Agia Varvara (Greek: Αγία Βαρβάρα, meaning Saint Barbara) is a suburb in the western part of Athens, Greece.
Agia Varvara is situated east of the mountain Aigaleo. It is 6 km (4 mi) west of central Athens and 5 km (3 mi) north of Piraeus. The municipality has an area of 2.425 km2. Since December 2013, it is served by the Agia Marina station of the Athens Metro.