Georg Christian Wittstein (25 January 1810, in Hann. Münden – 1 June 1887, in Munich) was a German pharmaceutical botanist and chemist. He trained as a pharmacist in Minden, then worked as a pharmacy assistant in Clausthal, Güstrow und Hanover. In 1840, he received his doctorate from the Ludwig-Maximilians-Universität München, where he worked for several years as an assistant at the pharmaceutical institute. From 1851 to 1853, he taught classes at the technical school in Ansbach, and afterwards spent many years as director of a private school for chemistry in Munich (1853–1879).
The plant genus Wittsteinia (family Alseuosmiaceae) was named in his honor by Ferdinand von Mueller.
