Friedrich Adam Julius von Wangenheim (February 8, 1749 Sonneborn - March 25, 1800 Gumbinnen) was a German botanist specializing in forestry, and was the citing authority for a number of described eastern North American plant species. He was also a Hessian soldier, and during his service in the thirteen colonies devoted his leisure time to botanical studies of American forests. When he returned to Prussia, he wrote up his research and strongly advocated importing suitable American species of trees and shrubs for use in German forests.