Apostolos Nikolaidis Stadium (Greek: Στάδιο Απόστολος Νικολαΐδης) is a football stadium and multi-sport center in Athens, Greece. It was inaugurated in 1922 and is the oldest football stadium in Greece currently active. It is the traditional athletic center of Panathinaikos A.C. and has been the home ground of Panathinaikos FC for the most part of the club's existence.