Kalthoff
Kalthoff is the family name of the following people:
- Albert Kalthoff (1850–1906), German reform theologian, philosopher and co-founder and the first chairman of the German Monist Association
- Edgar Kalthoff (1930–2002), German historian, author and editor
- Helmut Kalthoff (* 1948), German football official and coach
- Horst Kalthoff (1926–2017), German doctor and writer
- Johann Heinrich Kalthoff (1803–1839), German Hebraist, educator and university professor