John Mitchinson (researcher)

John Mitchinson is a British publisher, podcaster and the head of research for the British television panel game QI. He is the managing director of Quite Interesting Limited and co-writer of the QI series of books with the show's creator John Lloyd. The two men are normally referred to as "The Two Johns" and are seen as the main controllers of QI. He also has a column called "The Upsidedown" at the Byline Times.

Mitchinson is cofounder of the international publishing company Unbound, and along with Andy Miller presents Unbound's literature podcast Backlisted ("giving new life to old books"). In March 2025, Unbound went into administration, leaving many of its authors owed thousands of pounds in unpaid royalties. Unbound relaunched as Boundless Publishing and Mitchinson retained his role as Director of the company, having purchased Unbound's assets in a pre-pack sale. In May 2025, he quit Boundless.