Fredenhagen
Fredenhagen is a family name for the following people:
- Karl Fredenhagen (1877–1949), German physical chemist
- Klaus Fredenhagen (* 1947), German physicist, grandson of Karl Fredenhagen
- Thomas Fredenhagen (1627–1709), Lübeck merchant, councilor and patron of the late Renaissance
- Victor Fredenhagen (1876–1934), German machine manufacturer
- Wilhelm Fredenhagen (1843–1924), German machine manufacturer
Fredenhagen is the name of the following company:
- Fredenhagen (Company) Company in Offenbach am Main