Alexandreion Melathron, Nick Galis Hall (since 2013) (Greek: Αλεξάνδρειον Μέλαθρον, Σάλα Νίκος Γκάλης, από το 2013) is an indoor sports arena that is located in Thessaloniki, Greece.

The Alexandreion Melathron Nikos Galis Hall indoor arena is located in downtown Thessaloniki, inside the International Trade Fair grounds.

The structure shares two of the architects with the Palais des Sports de Gerland in Lyon and has many similarities.

These updates resulted in a lower permanent seating capacity (5,138 compared to the previous 6,000) for Alexandreion Arena, which reopened its gates in late 2004.

[7] The arena was named after Alexander the Great, the king (basileus) of the ancient Greek kingdom of Macedonia.