Sir John Edward Mitting (born 8 October 1947) is a retired judge of the High Court of England and Wales. He has chaired the Undercover Policing Inquiry since 2017.^[1]

Mitting attended Downside School and Trinity Hall, Cambridge.

He was called to the bar at Gray's Inn in 1970 and made a bencher in 1996. He became a Queen's Counsel in 1987. He was appointed a Recorder in 1988.^[2] On 3 April 2001, he was appointed a High Court judge, receiving the customary Knight Bachelor, and assigned to the Queen's Bench Division. He served as Chairman of the Special Immigration Appeals Commission from 2007 to 2012.^[2] He presided over the Libel Case related to "Plebgate" and the Uber English language tests case.

He retired as a High Court judge on his 70th birthday in 2017, and has been appointed to chair the Undercover Policing Inquiry, following the resignation due to ill-health of Lord Justice Pitchford. In March 2018 campaigners and their legal team walked out of a hearing of the inquiry, calling for him to step down.^[3]

Mitting is married to Judith, a retired solicitor who also sat as a part-time judge specialising in tax tribunals. Lady Mitting was previously managing partner of Grindeys solicitors in Stoke-on-Trent. She is the Chair of Katharine House Hospice in Stafford.^[4]