Friedrich Karl Johann Vaupel ( 23 May 1876, Kreuznach – 4 May 1927, Berlin) was a German botanist who specialized in the study of cacti.
While still a student, he participated in a scientific journey to Mexico and the West Indies (1899–1900).
The genus Vaupelia was named in his honor by botanist August Brand (1863–1930).
[2] He was an editor of the multi-volume "Blühende Kakteen (Iconographia cactacearum)", issued in 45 parts from 1900 to 1921.
The project was originated by Karl Moritz Schumann in 1900, and continued by Max Gürke and Vaupel.