Idiotest (a portmanteau of "idiot" and "test" and stylized with the second letter i inverted) is an American television game show broadcast by Game Show Network (GSN). Hosted by Ben Gleib, the series features contestants in teams of two competing to answer brain teaser and puzzle questions. The winning team advances to a bonus round for an opportunity to increase their winnings to $10,000. The series was announced at GSN's upfront presentation in March 2014, and the first episode premiered on August 12, 2014 of that year. On December 15, 2018, the first season became available to watch on Netflix.

Critical reception for the series has been mixed, with one writer calling it "enjoyable" while another called it "uninteresting." Additionally, GSN released an online game midway through the first season that allows users to answer questions from the series' past episodes.