John Geddes (December 25, 1777 – March 4, 1828) was the 47th Governor of South Carolina from 1818 to 1820.
He was a member of the House of Representatives until his election to the South Carolina Senate in 1816.
The General Assembly chose Geddes to be the Governor of South Carolina in 1818 for a two-year term because of his strong Republican views.
Upon leaving the governorship in 1820, Geddes was given the position of Brigadier General of the South Carolina militia.
Geddes died in Charleston on March 4, 1828, and was buried at the First Scots Presbyterian Churchyard.