SUNEL Arena, also known as the Ano Liosia Olympic Hall, is a multi-purpose indoor arena located in Ano Liosia, in the western section of Athens, Greece. Originally built to host martial arts events during the 2004 Athens Summer Olympics, the arena has since been adapted for various uses. In 2021, the arena became the home for AEK B.C., for their games in the Greek Basket League and the Basketball Champions League.