James Armistead Lafayette (born 1748 or 1760, New Kent County, Virginia – died 1830 or 1832, New Kent County, Virginia) was an enslaved African American who served the Continental Army during the American Revolutionary War under the Marquis de Lafayette. As a double agent, he was responsible for reporting the activities of Benedict Arnold – after he had defected to the British – and of Lord Cornwallis during the run-up to the Battle of Yorktown. He fed the British false information while disclosing very accurate and detailed accounts to the Americans.
Armistead was owned by William Armistead of Virginia. Most sources indicate that James Armistead was born in 1748 in New Kent County, Virginia, though others put his birth around 1760.