Georg Rudolf Boehmer (German: Böhmer) (1 October 1723 – 4 April 1803) was a German botanist and physician born in Liegnitz.
He studied botany at the University of Leipzig under Christian Gottlieb Ludwig (1709–1773).
During his career he also had part-time duties as city physician (Stadtphysikus) in Wittenberg, later serving a similar function in Kemberg.
Among his publications was a five-volume work on natural history called Bibliotheca scriptorum historiae naturalis.
The plant genus Boehmeria from the family Urticaceae is named in his honor.