Alphee Lavoie is an American professional astrologer, researcher, teacher, and software developer who has practiced astrology full-time since 1965. He founded the Astrological Institute of Research in Connecticut and later established AIR Software, which develops astrology research and financial-market forecasting programs. Lavoie is known particularly for his expertise in horary astrology, predictive techniques, and financial astrology. Over more than five decades he has worked as a counseling astrologer, taught astrology classes internationally, authored books and articles on horary astrology, and lectured at major astrological conferences.