Justice Christmas Humphreys Q.C. (1901 - April 1983) lawyer, High Court judge, and founder of the Buddhist Society, London.

Humphreys founded the Buddhist Society in 1924. It is now one of the largest and oldest Buddhist organisations outside of Asia.

In 1934, he became Junior Treasury Counsel (a prosecutor) at London's Central Criminal Court, more commonly known as "the Old Bailey." In 1950, he became Senior Prosecuting Counsel. In 1955, he was selected as a Bencher, a principal officer of the Inn. In 1959 Humphreys was appointed as Queen's Counsel.

Humphreys' was appointed as a Recorder (magistrate with limited powers) for Deal, Kent from 1942 to 1956 and then for Guildford, Surrey from 1956 to 1968. He served as Deputy Chairman of the East Kent Quarter Sessions from 1947 to 1971.

In 1962 Humphreys became a Commissioner at the Old Bailey. He became an Additional Judge there in 1968 and served on the bench until his retirement in 1976.

Among the famous cases in which Humphreys were involved were the Evans-Christie cases and the Ruth Ellis case.