Johann Kollmann
Johann Kollmann is the name of the following people:
- Johann Kollmann (councilor) († 1428), German politician, councilor in Lübeck
- Johann Kollmann (Mayor) († 1454), German politician, Mayor of Lübeck
- Johann Georg Kollmann (1820–1903), German pastor and politician
- Johann Jakob Kollmann (1714–1778), German physician
