QAnon is the name often given to the loose affiliation of users who belong to connected but discrete social media communities that host content supportive of the anonymous figure known as ‘Q’.

Between their first post in October 2017 and their last post in December 2020, a series of cryptic posts attributed to ‘Q’ were released on internet message boards. After suspensions from mainstream sites like Facebook, Twitter, and YouTube, alternative social media QAnon groups have continued to attract a large audience. Though there are no exact numbers for the size of QAnon due to the informal nature of group membership, a number of polls, surveys, and investigations hint at millions of interested followers.