John Arthur Maundy Gregory (1 July 1877 – 28 September 1941) was a British theatre producer and political fixer who is best remembered for selling honours for Prime Minister David Lloyd George. He may also have been involved with the Zinoviev Letter, the disappearance of Victor Grayson, and the suspicious death of his platonic companion, Edith Rosse. Gregory claimed to have been a spy for British intelligence.
Gregory was born in Southampton, where his father was a clergyman. He attended Banister Court school in Southampton. A classmate was Harold Davidson, the infamous rector of Stiffkey. He attended Oxford University, but left before graduation. Gregory became a teacher, and later worked as an actor and theatre producer.
Much of the information about Gregory comes from his own papers and curriculum vitae, the truth of which is questionable. According to these sources, Vernon Kell, head of MI5, recruited Gregory in 1909, possibly because of Gregory's connections from London's nightlife. At MI5, Gregory mainly compiled dossiers on suspected foreign spies living in London. Later, Sidney Reilly allegedly recruited Gregory for the recently formed MI6. Gregory referred to his alleged time at MI5 and MI6 when he asserted that he had raised funds for the fight against Bolshevism. Official records verify that Gregory served as a private in the Irish Guards, but do not verify his time at MI5 or MI6. Gregory claimed that at about the same time he claimed he was working for MI5 and MI6, he became acquainted with Basil Thomson. Thomson was the Assistant Commissioner of Scotland Yard's CID. The relationship between Gregory and Thomson lasted for several years.
Around 1918, Gregory approached the Liberal Party to arrange payments to the party in exchange for peerages. He was actually one of many to do this. David Lloyd George hired him as a broker to gather funding for the United Constitutional Party Lloyd George was planning to form.