Boris Vladimirovich Annenkov (February 9, 1889 – April 25, 1927) (Russian: Борис Владимирович Анненков) was an ataman of the Siberian Cossacks, major general and commander of the Seven Rivers Army.

[1] Numerous military crimes were committed by troops under his command against the Red Army and civilians over the course of the Russian Civil War.

For his combat valor he received between 1915 and 1917 a Golden Weapon for Bravery (known as Saint George Sword), as well as the Legion of Honor order from the hands of General Paul Pau.

He fought the Red troops in the southern Urals and Central Asia and became the commander of the independent army of Seven Rivers in August 1919.

The Chinese authorities arrested him in March 1921 and he was not released until three years later thanks to the efforts of General Denissov and the support of British and Japanese representatives.