Dion Van Zyl is a South African astrologer whose published work focuses on long-form astrological theory and observation. His blogs, active from 2006 to 2017, covered heliocentric techniques drawing on the research of J.H. Nelson, mundane and political astrology, financial cycles, and broader questions of astrological philosophy and practice. Topics spanned planetary symbolism, world event commentary, and symbolic observation across multiple blog platforms.