Telekom Center Athens, formerly known as the OAKA Olympic Indoor Hall and later the Nikos Galis Olympic Indoor Hall, is a major indoor sports and entertainment venue within the Olympic Athletic Center of Athens (OAKA) “Spyros Louis” in Marousi, Greece. The Olympic Indoor Sports Center was inaugurated in 1995 and became one of the principal venues used during the 2004 Athens Olympic Games.
The arena underwent a major refurbishment for the 2004 Olympics, with Spanish architect Santiago Calatrava involved in the renovation and architectural design work. One of its most recognizable features is its distinctive A-frame roof, supported by four large pillars approximately 35 metres high.
The venue has a long association with Greek basketball. It serves as the home court of Panathinaikos B.C. and has also been an important home venue for the Greek men's national basketball team. AEK Athens has used the arena for basketball as well, although it is more accurate to describe AEK as a former or occasional tenant rather than a permanent co-tenant.
The arena hosted artistic gymnastics and trampoline events, as well as the basketball finals, during the 2004 Olympics. It has subsequently hosted major basketball competitions and other events, including the 2007 EuroLeague Final Four and the 2006 Eurovision Song Contest.
The facility is owned by the Greek state. In 2023, Panathinaikos B.C. secured a 49-year concession, accompanied by an obligation to invest in the venue's infrastructure. The arena was subsequently rebranded Telekom Center Athens in 2025.
Trivia
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The O.A.C.A. Olympic Indoor Hall has been renamed as the Nikos Galis Olympic Indoor Hall in 2016 in honor of Nikos Galis, a renowned Greek basketball player.
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The arena is considered to be one of the largest and most modern indoor sports arenas in the entirety of Europe.
