Katharina Henot or Henoth (1570 – 19 May 1627) was a German postmaster and an alleged witch, burned at the stake for sorcery in Cologne.
Katharina Henot was a well-known and influential citizen in Cologne, and was married to Heinrich Neuden.
Together with her brother, Hartger Henot (1571–1637), she had inherited the postal office from her father Jacob and worked as perhaps the first female postmaster in Germany.
They were in a conflict in the Imperial court with Count Leonhard II von Taxis, who wished to create a central post office.
Her brother Hartger Henot tried to get her freed by appealing directly to the Imperial court, but did not succeed.