Okben Ulubay is a Turkish professional basketball player for Türk Telekom of the Turkish Basketbol Süper Ligi (BSL). He mainly plays at the small forward position, but he also has the ability to play as a shooting guard.

Türk Telekom Basketbol Kulübü is a professional basketball team that is based in Ankara, Turkey. The team is currently playing in the Turkish Basketball Super League. It is a branch of the Türk Telekom GSK sports club. Their home arena is the Ankara Arena. The arena, which has a capacity of 10,400 seats, opened in April 2010.