Tajuddin Yildoz is a Turkic slave of Sultan Shahabuddin Muhammad Ghauri who rises to become ruler of Ghazni after Ghauri's death.

Tajuddin Yildoz twice tries to conquer Sindh but Nasir-ud-Din Qabacha defeats him in 1210.

During the rule of Iltutmish, he also tries to lay his claim on Delhi but is defeated by the former at Tarain.