Stephen Bullock (October 10, 1735 – February 2, 1816) was a United States representative from Massachusetts. Born in Rehoboth in the Province of Massachusetts Bay, he attended the common schools, taught school, and was a captain of the Sixth Company in Col. Thomas Carpenter III's Regiment of Massachusetts militia during the Revolutionary War, and was in the Battle of Rhode Island in 1778. He was a delegate to the first State constitutional convention in 1780 and was a member of the Massachusetts House of Representatives in 1783, 1785, 1786, 1795, and 1796.