Peter Horry (1743 or 1747 – 28 February 1815) was a South Carolina militia leader. On June 12, 1775, the Provincial Congress of South Carolina elected twenty captains to serve in the 1st and 2nd South Carolina Regiments, which on September 16, 1776, were taken on the Continental Establishment as the 1st and 2nd Regiments, South Carolina Line. Peter Horry was elected one of those captains, and receiving the fifth highest vote, was ranked fifth of the twenty and assigned to the 2nd Regiment.
On September 16, 1776, he was promoted to major of the 2nd Regiment, and in 1779 was promoted to lieutenant-colonel and assigned to the 5th Regiment. When the 1st, 2nd, 3rd, 5th and 6th Regiments were consolidated February 12, 1780, into three regiments he was placed upon the “supernumerary list” to await a vacancy in the rank of lieutenant-colonel in the Continental Line of South Carolina.
In July, 1780, all officers and men of the South Carolina Line not in the hands of the enemy or on parole were directed to report to General Gate’s headquarters at Hillsboro, N. C. In accordance therewith Horry reported to Gates, but as he was without a command, Gates assigned him to duty with the militia of South Carolina. After the appointment of Lieutenant-Colonel Francis Marion, another officer of the South Carolina Line without a command–his regiment having been captured at the Fall of Charleston while he was on furlough–to be brigadier general of the lower brigade of the militia of South Carolina by Governor Rutledge, Horry became colonel of one of the militia regiments under Marion. Horry County, South Carolina, is named for him.