Benjamin Thomas Pouncy was an English draughtsman and engraver.

He was the son of Edward Pouncy, born around 1750, and the family background was in Kent. He was a pupil of William Woollett, stated to have been his brother-in-law by the Gentleman's Magazine. He obtained employment through Lambeth Palace, and from the 1770s assisted Andrew Ducarel in his researches with illustrations.

A fellow of the Incorporated Society of Artists, Pouncy exhibited topographical views with them in 1772 and 1773; he also sent such works to the Royal Academy in 1782, 1788, and 1789. He died in Pratt Street, Lambeth, on 22 August 1799, and was buried in the graveyard of the parish church.