Železnik Hall is the basketball arena in Belgrade, Serbia. The arena is currently used as a training facility to KK Crvena zvezda.
The basketball arena has three levels and the area of 4,500 square metres. With various associate structures it represents a modern sports and business complex. Apart from the seating capacity of 3,000, there is a hydromassage block, specialized medical diagnostic centre and a modern gym of 200 square metres. The arena has scenic illumination and loudspeakers of 6 kW. The arena got new premises, trophy hall, press hall with a capacity for 40 people and a hotel with an area of 1,000 square metres for the accommodation of basketball players.