Lorenz (1842–1909) was a German ornithologist.
Lorenz lived in Russia where he worked as a taxidermist in the Zoological Garden of the Imperial University in Moscow.
He explored the Caucasus and Kirghizistan.
Lorenz was an authority on Tetraonidae and Phasianidae.
A species of snake, Ramphotyphlops lorenzi, is named in his honor.