Heinrich Rantzau or Ranzow (Ranzovius) was a German humanist writer and statesman, a prolific astrologer and an associate of Tycho Brahe. He was son of Johan Rantzau.
- Occupation
- writer, poet lawyer, astrologer, humanist
- Position held
- Statthalter (Schleswig-Holstein)
- Citizenship
- Kingdom of Denmark
- Born
- March 11, 1526
- Died
- December 31, 1598