Sinan Erdem Dome
| Former names | Ataköy Dome |
|---|---|
| Location | Ataköy, Bakırköy, Istanbul, Turkey |
| Coordinates | 40°59′18.78″N 28°51′14.15″E / 40.9885500°N 28.8539306°E |
| Owner | Istanbul Metropolitan Municipality – Spor A.Ş. |
| Capacity | Basketball: 16,000 Tennis: 16,457 Concerts: 22,500 |
| Construction | |
| Opened | April 23, 2010 |
| Renovated | 2017 |
| Construction cost | € 22 million – original construction cost (2003) US$ 47 million – remodel construction cost (2010) ($67.8 million in 2024 dollars) |
| Tenants | |
| Turkish national basketball team (2010–present) Anadolu Efes (2010–2012, 2017–2024) Fenerbahçe (2010–2012) Galatasaray (2017–2024) Beşiktaş (2015–2016, 2024-present) Bahçeşehir Koleji (2024–present) | |
The Sinan Erdem Dome (Turkish: Sinan Erdem Spor Salonu), formerly known as the Ataköy Dome, is a multi-purpose indoor arena that is located in Ataköy, Bakırköy on the European side of Istanbul, Turkey.
It has a seating capacity of 22,500 for concerts. For the sport of basketball, it has a seating capacity of 16,000, and for the sport of tennis, it has a seating capacity of 16,457 people, making it Turkey's largest multi-purpose indoor venue, and the third largest in Europe (although it is not the third largest in Europe in capacity for basketball use). The arena is named after Sinan Erdem (1927–2003), a former Turkish volleyball player who was the President of the Turkish National Olympic Committee, from 1989, until his death in 2003.