Alfred Kirchhoff (23 May 1838 Erfurt - 8 February 1907 Mockau) was a German geographer and naturalist.
He was educated at Jena and Bonn; from 1871 to 1873 was lecturer on geography at the Kriegsakademie of Berlin, and in the latter year was appointed to the chair of geography in the University of Halle.
His writings include:
- Schulbotanik (1865)
- Pflanzen- und Tierverbreitung (1890)
- Menschen und Erde (1901)
- Unser Wissen von der Erde, in collaboration with other scholars (1886–93)