The Flag of Irkutsk Oblast is the official symbol representing the administrative division of Russia known as the Irkutsk Oblast. Adopted on October 24, 1996, the flag consists of three horizontal stripes in the colors green, white, and blue, with the regional coat of arms centered in the white stripe. The green represents forests, nature, and fertile lands; the white symbolizes water (mainly the Angara River) and snow; while the blue stands for the clear sky above the oblast. The coat of arms depicts a golden sable holding a golden key and standing on a hill covered with three green mountains. This flag embodies the historical, cultural, and geographical features of the Irkutsk Oblast, a region situated in eastern Siberia.