Wilhelm Theodor H. Wulff (27 March 1892 - 9 June 1979) was an German-Austrian astrologer and writer. He is best known for the 1973 book Zodiac and Swastika. The book tells about his time as an astrologer in Nazi Germany near the end of World War II. He was Heinrich Himmler's astrologer.
- Wulff, Wilhelm (1973). Zodiac and Swastika: How Astrology Guided Hitler's Germany. Coward, McCann & Geoghegan. ISBN 0698105478. http://books.google.com/books/about/Zodiac_and_Swastika.html?id=G4mJQgAACAAJ. Retrieved 20 October 2012.