Athletic Club Omonia Nicosia (Greek: Αθλητικός Σύλλογος Oμόνοιας Λευκωσίας, ΑΣΟΛ; Athlitikos Sillogos Omonia Lefkosias, ASOL) is a Cypriot professional football club based in Nicosia. The club was established on 4 June 1948. The football team of AC Omonia joined the Cyprus Football Association in 1953. On 29 May 2018 the football team of AC Omonia became a profesional for-profit football company.
Omonia is one of the most popular and historically successful football clubs in Cyprus, having won 20 national championships, 14 cups and 16 super cups. Omonia holds an outstanding record of 14 championships in two decades (between 1970–1989), a record of being either champion or runner-up 14 times in a row in the championship (between 1973-1986), and the record of having won the Cypriot Cup four times in a row (between 1980 and 1983).
The AC Omonia also operates basketball, volleyball, cycling and futsal. The latter one is being particularly successful, having won the league and cup in three consecutive years since 2011.
The Pancyprian Gymnastic Association Stadium (GSP Stadium) (Greek: Στάδιο Γυμναστικός Σύλλογος "Τα Παγκύπρια") is a football stadium in Strovolos, Nicosia District, Cyprus. Although small by international standards, it is the largest stadium in Cyprus, with a capacity of 22,859 and was opened in 1999. It serves as the home stadium for the two Nicosia's biggest clubs APOEL and Omonia. It is also the home stadium of the Cyprus national football team. A stadium under the same name, the old GSP Stadium, existed from 1902 until 1999 in the centre of Nicosia and had a capacity of 12,000.