Franklin Barlow Sexton (April 29, 1828 – May 15, 1900) was a politician from Texas who served in the Confederate Congress during the American Civil War.
In 1862, he was elected to the First Confederate Congress as a representative from Texas's 4th District and left home in July to travel to Richmond, Virginia, to assume his duties, arriving in mid-August.
When the state authorized construction of a new Capitol building in Austin, Sexton was selected to deliver an address at the ceremony for the laying of the cornerstone.
He was a delegate to the 1876 Democratic National Convention in St. Louis, where he made an impassioned speech supporting Samuel J. Tilden.
In 1923, Sexton's diary recording his first two years in the Confederate Congress was discovered, providing a rare glimpse into the inner workings of that body.