George Blake Cosby (January 19, 1830 – June 29, 1909) was a Confederate general during the American Civil War.

After the war he farmed in California, worked as aa sutler in Oregon and held several government positions.

[1] He taught cavalry tactics at West Point before his resignation to join the Confederate States Army.

[1] On May 16, 1861, George B. Cosby was appointed Captain and assistant adjutant general in the regular army of the Confederate States.

Cosby was promoted to Brigadier General on January 20, 1863[5] and given command of a cavalry brigade in the Department of Mississippi and East Louisiana.

[1] They served under General Joseph E. Johnston in the campaign around Jackson, Mississippi, which was planned to relieve the Siege of Vicksburg.

[2] Cosby also lived in Sacramento, California, where he served as receiver of funds in the federal land office.

[8] General Cosby died by suicide on June 29, 1909, at Oakland, California, allegedly due to continuing pain from his old war wounds.