An U21 team is made up of players between the ages of 18 and 20, and it is the last level of amateur play before a footballer reaches professional status in Turkey.

The club was founded by former Trabzonspor footballer and manager Özkan Sümer in 1972.

[3] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Trabzonspor has a notable youth academy, producing several Turkey national football team players including Hami Mandıralı, Gökdeniz Karadeniz, Fatih Tekke, Hüseyin Çimşir, Mehmet Yılmaz, Tolga Zengin, and Metin Aktaş.

Gökdeniz Karadeniz is the most-capped Turkish international to come through the Trabzonspor academy.