thumb|Johann Jakob Nöggerath.
Johann Jakob Nöggerath (also as Johann Jacob Noeggerath) (10 October 1788 – 13 September 1877), German mineralogist and geologist, was born at Bonn.
In 1814-1815 he became a commissioner of mines for some of the Rhine provinces, and in 1818 became an associate professor at the newly established University of Bonn. In 1821 he was named a full professor of mineralogy and mining sciences at Bonn, where he also served as director of the university's natural history museum. He obtained a very fine collection of minerals for the museum, was eminently successful as a teacher, and achieved a wide reputation among mining engineers.
The following are his more important publications:
- Über aufrecht im Gebirgsgestein eingeschlossene fossile Baumstämme und andere Vegetabilien (1819–1821).
- Das Gebirge in Rheinland-Westphalen, nach mineralogischem und chemischem Bezuge (4 volumes, 1822–1826).
- Die Entstehung und Ausbildung der Erde, vorzüglich durch Beispiele aus Rheinland-Westphalen erläutert (1843).
- Der Laacher See und seine vulkanischen Umgebungen (1870).
