Harold H. Thompson (April 9, 1942 in Huntington, West Virginia – October 11, 2008) was an Irish-American anarchist activist and prisoner. Thompson was of Irish extraction, his parents having emigrated to the United States in the early twentieth century and settled in Huntington, West Virginia. Raised in a politicized environment, Thompson acquired an interest in anarchism at an early age, having heard the political debates of his father and his father's friends. He joined the Army and served in Vietnam War. He was discharged for being wounded, and became an anti-war and anarchist activist associated with the Vietnam Veterans Against the War during the 1960s and 1970s. He began a campaign of expropriation, and had several encounters with law enforcement.