Lieutenant-Colonel James Maydon Langley MBE MC (12 March 1916 – 10 April 1983) was an officer in the British Army, who served during World War II.

Like other British prisoners in the Vichy Zone Langley was held at Fort Saint-Jean, though this confinement was nominal, as they were only required to attend roll-call once a week, but were otherwise free.

[7] On his return to England he was recruited by Claude Dansey into the Secret Intelligence Service (MI6) to serve as liaison officer between MI6 and MI9, where most of his work involved the support of escape and evasion lines in north-west Europe.

[10] Langley was demobilised on 4 July 1946, being transferred to the Regular Army Reserve of Officers with the rank of lieutenant (war substantive major), retaining his seniority.

[11] He was promoted to major in the Reserves on 1 January 1949,[12] eventually relinquishing his commission, having reached the age limit, on 12 March 1966, and was granted the honorary rank of lieutenant-colonel.