Thomas Pichon (30 March 1700 – 22 November 1781), also known as Thomas Tyrell, was a French government agent during Father Le Loutre's War. Pichon is renowned for betraying the French, Acadian and Mi’kmaq forces by providing information to the British, which led to the fall of Beauséjour. He has been referred to as "The Judas of Acadia."