Jean Georges Chrétien Frédéric Martin Lobstein (German spelling: Johann Friedrich Georg Christian Martin Lobstein) (May 8, 1777 - March 7, 1835) was a German-born, French pathologist and surgeon who was a native of Giessen. He was the nephew of noted surgeon Johann Friedrich Lobstein (1736-1784).
In 1803 he earned his doctorate at the University of Strasbourg, subsequently working as an anatomical prosector as well as an assistant to the médecin-accoucheur en chef at the Citizen’s hospitals (Strasbourg). In 1805 he became a professor at École d'obstétrique du Rhin inférieur (School of Obstetrics of the Lower Rhine), where he ultimately served for thirty years. In 1819 he attained a professorship in pathological anatomy.
Jean Lobstein is remembered for contributions made in the field of pathological anatomy. He described a disorder known today as osteogenesis imperfecta type I, which is sometimes called "Lobstein's disease". This disease is an hereditary, generalized connective tissue disorder characterized by bone fragility and a blue-gray sclerae of the eyes. In 1813 he founded an impressive pathological museum in Strasbourg, a collection that remained intact until the years following the Franco-Prussian War, when its artifacts were either dispersed or lost.
Lobstein's best known publication was an unfinished four-volume work titled Traité d’anatomie pathologique, being based on his personal experiences as a pathologist. He was an avid archaeologist, historian and numismatist, and is also credited for coining the term "arteriosclerosis".
- Lobstein's ganglion: Also known as the thoracic splanchnic ganglion, which is a small collection of nerve bodies on the greater thoracic splanchnic nerve.