History IQ is a game show on the History Channel which premiered on October 2, 2000 and aired for two seasons. Marc Summers hosted and Harvey announced. History IQ was produced by Glow in the Dark Productions.

During each episode, three contestants participated in a process of elimination game. Season one's daily grand prize was $25,000. The daily grand prize was lowered to $5,000 in season two, but contestants also played for a spot to advance in a tournament for a top prize of $250,000.

During the show's original run, home viewers could play along with the game online at the History IQ website.

Shortly after the last original episode aired, reruns began airing at 6AM E/T on Saturday mornings, and continued until June 27, 2009.