Johann Klotzsch
Johann Klotzsch is the name of the following people:
- Johann Friedrich Klotzsch (historian) (1726–1789), German historian, numismatist and mining official
- Johann Friedrich Klotzsch (botanist) (1805–1860), German botanist, pharmacist and doctor
- Johann Georg Karl Klotzsch (1763–1819), German literary scholar and logician