The flag of East Turkestan, also known as Kök Bayraq (كۆك بايراق Көк Байрақ, Blue Banner), was adopted by the East Turkestan government on November 12, 1933. It is a symbol of the East Turkestan independence movement.
The flag resembles the Turkish flag, including a crescent and star historically representing Tengrism. The color blue represents the Gökturks, a group of ancient nomadic Turkic peoples. Gökturks translates to "Celestial Turks".
