Syros

Syros Περιφερειακή ενότητα Σύρου Δήμος Σύρου-Ερμούπολης
Regional unit
Ermoupoli and Ano Syros
Syros within the South Aegean
Coordinates: 37°27′N 24°54′E / 37.450°N 24.900°E / 37.450; 24.900Coordinates: 37°27′N 24°54′E / 37.450°N 24.900°E / 37.450; 24.900
Country	Greece
Region	South Aegean
Capital	Ermoupoli
Area
• Total	101.9 km2 (39.3 sq mi)
Population (2011)
• Total	21,507
• Density	210/km2 (550/sq mi)
Postal codes	841 xx
Area codes	228x0
Car plates	EM

Syros (/ˈsaɪrɒs, -roʊs/; Greek: Σύρος), or Siros or Syra is a Greek island in the Cyclades, in the Aegean Sea. It is located 78 nautical miles (144 km) south-east of Athens. The area of the island is 83.6 km² (32 sq mi) and it has 21,507 inhabitants (2011 census).

The largest towns are Ermoupoli, Ano Syros, and Vari (). Ermoupoli is the capital of the island and of the Cyclades. It has always been a significant port town, and during the 19th century it was even more significant than Piraeus. Other villages are Galissas, Foinikas, Pagos, Manna, Kini and Poseidonia.

Syros (Greek: ΣΥΡΟΣ) also refers to USS LST-325, which is an American made World War II-era tank landing ship that was sent to Greece on 1 September 1964, as part of the grant-in-aid program. She served in the Hellenic Navy as RHS Syros (L-144) from 1964 to 1999. It is now decommissioned and docked in Evansville, Indiana.

Ermoupoli (Greek: Ερμούπολη) stands on a naturally amphitheatrical site, with neo-classical buildings, old mansions and white houses cascading down to the harbour. The City Hall, where Miaoulis Square lies ringed with cafes and with seating areas under palm trees. The "City of Hermes" has numerous churches, including Metamorphosis, Koimisis, St. Demetrius, Three Hierarchs, Anastasis, Evangelistria and St. Nicolas. The Archaeological Museum has many finds and the Municipal Library contains numerous editions. The quarter of the town known as Vaporia is where the sea captains lived. Along its narrow streets, stand numerous neo-classical mansions.