1,227 QI Facts To Blow Your Socks Off is the sixth in a series of books based on the intellectual British panel game QI, written by series-creator John Lloyd, director of research John Mitchinson, and chief researcher James Harkin.

Published on 1 November 2012 (9 September 2013 in the US), it is a trivia book containing 1,227 facts collected during the making of the series, which had been ten years in the making at the time of publication.

[1] Lloyd said in an interview with The Daily Telegraph: "This book is like a set of haiku.

All the sources for the facts are listed online on the QI website.

[3] Other than Lloyd, Mitchinson and Harkin, credit for authorship is also given to QI researchers (also known as "Elves") Anne Miller, Andy Murray and Alex Bell.