Johann Pfaff
Johann Pfaff is the name of the following people:
- Johann Christoph Pfaff (1651–1720), German Lutheran theologian and philosopher
- Johann Friedrich Pfaff (1765–1825), German mathematician
- Johann Leonhard Pfaff (1775–1848), German bishop of Fulda
- Johann Sebastian Barnabas Pfaff (1747–1794) was an electoral Mainz court sculptor.
- Johann Wilhelm Andreas Pfaff (1774–1835), German mathematician