Valentin Tomberg (February 26, 1900 – February 24, 1973) was an Estonian-Russian Christian mystic, polyglot scholar and esotericist. 
 Valentin Tomberg was born on February 26, 1900 (February 14 in the Old Russian Julian calendar) in St. Petersburg, Russia. His parents were Lutheran, the mother was a Russian and the father of Baltic German origin, he was an official in the Tsarist government. As an adolescent, Tomberg was drawn to Theosophy and the mystical practices of Eastern Orthodoxy. In 1917, he was initiated into Hermetic Martinism by G. O. Mebes. He also discovered the works of Rudolf Steiner. In 1920, Tomberg fled with his family to Tallinn, in newly independent Estonia. Tomberg worked as a nurse at a hospital, in a pharmacy, on a farm and in the Tallinn Central Post Office. He studied languages and comparative religion at the University of Tartu in Estonia.
 In 1925, Tomberg joined Rudolf Steiner's Anthroposophical Society. In the early 1930s he married divorcée Maria Belozwetow (née Demski) (died March 1973), a Polish Catholic; they had a son, Alexis (August 31, 1933 – 1975). During the 1930s, Tomberg, then in his 30s, published his original occult research in a number of articles and lectures, which made him a controversial figure in Anthroposophical circles. As a result of the controversies, in 1938 the Tombergs were invited to move to Amsterdam. In 1940, however, he was asked to withdraw from the Anthroposophical Society in the Netherlands as well, by its chairman Willem Zeylmans van Emmichoven (1893–1961), due to his being too controversial.
 He was active in Dutch anti-Nazi resistance by hiding allied pilots and parachutists. Tomberg and a Russian friend, the poet-philosopher Nikolai Nikolaevich Bielotsvietov (Nikolaj Belozwetow) (1892–1950), allegedly approached the leader of the Christian Community, Emil Bock (1895–1959) about creating a new ritual focusing on Sophia, but were rebuffed. He then joined the Russian Orthodox Church in the Netherlands but left shortly thereafter, as its leadership turned out to be sympathetic to National Socialism.[citation needed]
 Towards the end of World War II, Tomberg received a Ph.D. in jurisprudence from the University of Cologne, where he had moved in 1944. He studied under Ernst Arthur Franz von Hippel (1895–1984), professor of law in the University of Cologne, who became a personal friend and an anthroposophist. Tomberg's thesis was published as Degeneration and Regeneration in the Science of Law, followed by the thesis Peoples' Rights as Humanity's Rights in 1946. Around this time, he converted to Roman Catholicism.
 Shortly after the war he helped founding a community college in the Ruhr area. In 1948, however, he moved to England, where he became a translator for the BBC, monitoring Soviet broadcasts during the Cold War at BBC Caversham Park. He retired early, in 1960, to the suburbanized village of Emmer Green, not far from Reading, where he worked on the manuscripts for his main work, written in French and entitled Méditations sur les 22 arcanes majeurs du Tarot (Meditations on the Tarot in English).
 Tomberg died on a holiday in Majorca. Two weeks later his wife and collaborator Maria died as well. A Dutch or German rough translation of the manuscript to Méditations sur les 22 arcanes majeurs du Tarot was circulated in the Netherlands against Tomberg's intentions a year before his death, but was only formally published in 1984.
 Robert A. Powell and others have reportedly identified Tomberg as the 20th century incarnation of the boddhisattva who they say will in time incarnate as the Maitreya Buddha, a claim contested by T. H. Meyer and other Anthroposophists.
 Tomberg's major written works were published posthumously.  They include: