John Archer Elmore (21 August 1762 – 24 April 1834) was an American military officer and politician.

Born in Virginia to a Quaker father, Elmore nonetheless joined the Continental Army during the American Revolution.

He joined the Continental Army while still a youth and served in the Virginia Line under Nathanael Greene.

Elmore was with Green in his tour through the Carolinas, and was present at the Surrender of Cornwallis at Yorktown.

[2] After the war, he settled in Laurens District, South Carolina, where he was elected to the State Legislature.