Thomas Abernethie (fl. c. 1783 - August 20, 1795) was a Scottish land surveyor, printer, and engraver active in Charleston, South Carolina during the latter part of the 18th century. Abernathie arrived in Charleston during American Revolutionary War, about 1783. As early as 1785 he maintained offices on 105 Broad Street, where he advertised himself as surveyor, a copper-plate engraver, and a printer. He later relocated his offices to 227 Meeting Street (1786) and ultimately 42 Queen Street (1785). In 1786 and 1789 he was contracted to engrave the city of Charleston's paper money. His is also known to have engraved the maps for David Ramsay's 1785 History of the American Revolution. Little else known of Abernathie's life, but his maps are considered the earliest printed in North America south of the Mason-Dixon Line. He died on August 20 of 1795.