Adolf Knop (12 January 1828, in Altenau – 27 December 1893, in Karlsruhe) was a German geologist and mineralogist.
In 1857 he became an associate professor of geology and mineralogy at the University of Giessen, where in 1863 he attained a full professorship.
In 1878 he succeeded Moritz August Seubert as manager of the Grand Ducal Natural History Cabinet.
[1][2] He was a catalyst towards the establishment of the Oberrheinischer Geologischer Verein (Upper Rhine Geological Society).
[2] A cerium-rich variety of perovskite called "knopite" is named after him.