Knudtzon
Knudtzon is a surname. Notable people with the surname include:
- Birger Knudtzon, retired Norwegian rower
- Broder Knudtzon, Norwegian merchant, politician and benefactor
- Erling Knudtzon, Norwegian football midfielder
- Hans Carl Knudtzon, Norwegian merchant, ship-owner and politician
- Jørgen Alexander Knudtzon, Norwegian linguist and historian
- Jørgen von Cappelen Knudtzon, Norwegian businessman and patron of the arts
- Leif Knudtzon, Norwegian modern pentathlete
- Nic Knudtzon, Norwegian telecommunications engineer
