Ermoupoli Ερμούπολη
Municipal unit
Clockwise from top: Panoramic view of the City of Ermoupoli, the Miaouli Square and the City Hall of Ermoupoli, Cathedral of Saint Nicholas, a central street in Ermoupoli, Industrial Museum of Ermoupoli, Building of the South Aegean Administration, and characteristic examples of urban architecture in Ermoupoli.
Seal
Ermoupoli Location within the regional unit
Coordinates: 37°26′N 24°55′E / 37.433°N 24.917°E / 37.433; 24.917
Country	Greece
Administrative region	South Aegean
Regional unit	Syros
Municipality	Syros-Ermoupoli
Area
• Municipal unit	11.2 km2 (4.3 sq mi)
Elevation	20 m (70 ft)
Population  (2021)[1]
• Municipal unit	13,399
• Municipal unit density	1,200/km2 (3,100/sq mi)
• Community	11,039
Time zone	UTC+2 (EET)
• Summer (DST)	UTC+3 (EEST)
Postal code	841 00
Area code(s)	22810
Vehicle registration	ΕΜ
Website	www.hermoupolis.gr

Ermoupoli (Greek: Ερμούπολη), also known by the formal older name Ermoupolis or Hermoupolis (Greek: Ἑρμούπολις < Ἑρμοῦ πόλις "Town of Hermes"), is a town and former municipality on the island of Syros, in the Cyclades, Greece. Since the 2011 local government reform, it is part of the municipality Syros-Ermoupoli, of which it is the seat and a municipal unit.^[2] It is also the capital of the South Aegean region. The municipal unit has an area of 11.181 km².^[3]

Ermoupoli was founded during the Greek Revolution in the 1820s, as an extension to the existing Ano Syros township, by refugees from other Greek islands because of the War. It soon became the leading commercial and industrial center of Greece, as well as its main port. The renowned Greek Steamship Company was founded in the city in 1856. Thousands of ships were built in the various Syros shipyards.

Eventually Ermoupoli was eclipsed by Piraeus in the late 19th century. In the following decades the city declined, remaining the administrative center of the Cyclades islands. In the end of the 20th and the beginning of the 21st century, its economy has significantly improved, based on the sectrors of services, industry, education and tourism.

Panoramic view of the harbour.

• Emmanouil Benakis (1843–1929), merchant and politician
• Olga Broumas (1949), poet and translator
• Manos Eleutheriou, lyricist
• Stelios Mainas (1957), actor
• Michael Melas, father of Pavlos Melas, fighter of the Greek Struggle for Macedonia
• Emmanuel Rhoides (1836–1904), writer and journalist
• Markos Vamvakaris (1905–1972), rebetiko musician
• Demetrius Vikelas (1835–1908), businessman, writer and the first president of the International Olympic Committee

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  Ermoupolis
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  Ano Syros und Ermoupolis
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  Postcard of Ermoupoli, 1904
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  The City Hall, Miaoulis Square
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  Ermoupoli town hall at night, Syros, 2019
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  Eleutheriou Venizelou street
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  Apollo Theatre
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  Ermoupoli, Agios Nikolaos & Didymi
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  Seaside view of Saint Nicholas Cathedral
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  Vaporia district
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  City view from the port
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  Ermoupolis & Ano Syros
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  Resurrection Church
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  Ermoupolis panorama, Syros, Greece
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  Restaurants on Emmanuel Rhoides street, Ermoupoli

• Official website of Ermoupoli (in Greek)