Penn, John (1741?–1788), a United States lawyer and a signer of the Declaration of Independence. Penn was born near Port Royal, Virginia. He was admitted to the bar in 1762. Penn moved to North Carolina in 1774 and served in the Continental Congress, 1775–77 and 1778–80. In 1780 he was a member of the board of war in North Carolina. He resumed his law practice in 1784.