Frederick Augustus Ludwig Karl Wilhelm Genth (May 17, 1820 – February 2, 1893) was a German-American chemist, specializing in analytical chemistry and mineralogy.

[1] He studied at the Hanau gymnasium and at the University of Heidelberg, under Justus von Liebig at Giessen, and finally under Christian Gerling (physics) and Robert Bunsen (chemistry) at Marburg, where he received the degree of Ph.D. in 1846.

He also held the office of chemist to the Geological Survey of Pennsylvania and also to the board of agriculture of that state.

[3] He also published "Tabellarische Übersicht der wichtigsten Reactionen welche Basen in Salzen zeigen" (Marburg, 1845), also the same in relation to "Acids" (1845); "Corundum" (in American Philosophical Society Proceedings, 1873); "Minerals of North Carolina," being appendix "C" of the Report on the Geology of North Carolina (Raleigh, 1875); also First and Second Preliminary Reports on the Mineralogy of Pennsylvania (Harrisburg, 1875/6), and Minerals and Mineral Localities of North Carolina (Raleigh, 1881).

Among those still recognized today are: melonite, calaverite, cosalite, schirmerite, coloradoite, montanite, kerrite, maconite, willcoxite, dudleyite, endlichite, landsfordite, nesquehonite, phosphuranylite, and penfieldite.