Panionios OnTelecoms is a historic multi-sport club from Athens, Greece, with a basketball section that competed in the Greek Basket League. The basketball team played its home games at the Nea Smyrni Indoor Hall. Panionios holds a special place in Greek basketball history, being one of the oldest clubs in the country. While they have not consistently challenged the duopoly of Olympiacos and Panathinaikos for titles, Panionios has enjoyed periods of significant success, including winning the Greek Cup twice and regularly qualifying for European competitions. They were known for a fast, entertaining style of play and for nurturing talented Greek players. The club's fan base is passionate and deeply connected to the Nea Smyrni district of Athens. In recent years, the basketball section has faced financial difficulties, but the name Panionios remains synonymous with tradition, pride, and a rich contribution to Hellenic basketball.