Alexandreio Melathron (Nick Galis Hall)
| Palais des Sports | |
| Aerial view of the Trade Fair area. The building down left is Alexandreion. | |
| Full name | Alexandreion Melathron Nick Galis Hall | 
|---|---|
| Former names | Alexandreion Melathron | 
| Location | Thessaloniki, Greece | 
| Coordinates | 40°37′36.83″N 22°57′25.99″E / 40.6268972°N 22.9572194°E | 
| Public transit | Panepistimio | 
| Owner | Greek Ministry of Culture, General Secretariat of Sports | 
| Capacity | Basketball: 5,138 (permanent seating) 6,000 (with temporary seating) | 
| Surface | Parquet | 
| Construction | |
| Opened | 29 June 1966 | 
| Renovated | 2004, 2015 | 
| Architect | Petros Gianettos, M. Guyon and T. Jeanblock | 
| Tenants | |
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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. It is also often referred to as Palais des Sports (Greek: Παλαί ντε Σπορ).
The arena is mainly used to host basketball and volleyball games. The arena's main hall, called Nick Galis Hall, has a permanent seating capacity of 5,138, and a capacity of 6,000 with temporary seating, for basketball games. The arena also contains a practice court, club offices, shops, and a museum dedicated to the Aris basketball club. The arena hosts the home games of Aris Thessaloniki B.C., a member of the Greek League.