Toombs, Robert A. (Augustus) (1810–1885), a United States and Confederate political leader. While serving in the U.S. House of Representatives (1845–52) and Senate (1853–61), he vigorously supported states' rights doctrines. He resigned from the Senate after Lincoln was elected and became a leader in the secession movement in Georgia.

After serving briefly as Confederate secretary of state and as a brigadier general in the Confederate army until late in 1862, Toombs became a harsh critic of the Confederate government. When the war ended, however, he refused to swear allegiance to the United States and was therefore barred from resuming his career in public office. Nonetheless, he was a powerful influence in Georgia politics for many years.

Toombs was born in Wilkes County, Georgia. He graduated from Union College in 1828 and studied law at the University of Virginia. He served in the Georgia legislature, 1837–40 and 1841–44.