Friedrich Klockmann (12 April 1858, Schwerin – 17 November 1937, Aachen) was a German geologist and mineralogist.
He studied geology and mineralogy at the Bergakademie in Clausthal and at the University of Rostock, receiving his doctorate in 1881.
From 1887 he taught classes in mineralogy and geology at the academy in Clausthal, and in 1892 attained the title of professor.
[1][2] He was the author of a well-received textbook on mineralogy, "Lehrbuch der Mineralogie", that was published over numerous editions.
[3] The mineral klockmannite commemorates his name,[4] as does "Klockmannfjellet", a mountain (939m) located in the central part of Wedel Jarlsberg Land, Spitsbergen.