Johann Georg Lehmann
Johann Georg Lehmann is the name of the following people:
- Johann Georg von Lehmann (1688–1750), German major general
- Johann Georg Lehmann (geodesist) (1765–1811), German geodesist, cartographer and mathematician
- Johann Georg Lehmann (historian) (1797–1876), German historian
- Johann Georg Christian Lehmann (1792–1860), German botanist
- Johann Georg Gottlieb Lehmann (1745 / 1746–1816), German singer, organist and composer