Seaton Grantland (* June 8, 1782 in New Kent County, Virginia; † October 18, 1864 in Milledgeville, Georgia ) was an American politician. Between 1835 and 1839 he represented the state of Georgia in the U.S. House of Representatives.
Seaton Grantland received a good basic education. After a subsequent study of law and qualifying as a lawyer, he started in Milledgeville to work in his new profession. Politically, he joined the first on the movement of President Andrew Jackson and his Democratic Party. In the state- wide discharged congressional elections of 1834 he was elected for the eighth parliamentary mandate of Georgia in the U.S. House of Representatives in Washington, where he became the successor of George Rockingham Gilmer on March 4, 1835. After a re-election in 1836 he was able to complete in Congress until March 3, 1839 two legislative sessions.
After his retirement from the U.S. House of Representatives Grantland moved on to the Whig party. In the presidential election of 1840 he was one of the electors of that party. He voted for the victorious William Henry Harrison. Subsequently, Seaton Grantland withdrew from politics. He died on October 18, 1864 at his estate " Woodville " in Milledgeville.