Alan Leo, born William Frederick Allan, (Westminster, 7 August 1860 – Bude, 30 August 1917) was an English astrologer, author, publisher, astrological data collector and theosophist. He is often referred to as "the father of modern astrology". His work stimulated a revival of astrology in the Western world after its decline at the end of the 17th century. Leo was a devout theosophist and he worked many of its religious concepts such as karma and reincarnation into his astrology. He used the Theosophical Society's vast international connections to publish, translate and disseminate his work across Europe and America.
