Omonoia station is a subway station in Omonoia square of Athens used by Attiko Metro and ISAP.

The first station opened 1895 but had been completely redesigned until 1930 as a Metro station. In 2000 the additional platforms for Line 2 was opened.

el:Σταθμός Ομονοίας (Μετρό Αθήνας)fr:Omonia (métro d'Athènes)