What is "p.a.o.k."

P.A.O.K. (, Πανθεσσαλονίκειος Αθλητικός Όμιλος Κωνσταντινοπολιτών, Panthessalonikeios Athlitikós Ómilos Constantinoupoliton, Pan-Thessaloniki Athletic Club of Constantinopolitans), known in European competitions as A.C. PAOK (Α.Σ. Π.Α.Ο.Κ.), is a major multi- sports club in Thessaloniki, Greece. The club is home to several teams, including football, basketball, volleyball, handball, water polo, swimming, wrestling, ice hockey, and weightlifting. PAOK was founded in 1926. Because of its crest, it is also known as the " Two-Headed Eagle of the North", in contrast with AEK, the "Two-Headed Eagle of the South". They are one of the most popular Greek clubs with millions of fans all over Greece (mostly in Northern Greece but not only), such as the Greek diaspora.