The state flag of Agin-Buryat Okrug in eastern Russia is a vertical tricolour of blue, yellow and white. The flag is charged with a yellow partial Soyombo symbol at the upper end of the blue band. The Soyombo is a cultural symbol of the Mongols, and is also present on the flags of Mongolia and Buryatia.
The flag was designed by the Buryat artist Bato Dampilon. It was adopted on 6 July 2001. Its proportions are 2:3.