The Gesellschaft zur wissenschaftlichen Untersuchung von Parawissenschaften (GWUP) (English: Society for the Scientific Investigation of Pseudosciences) is a non-profit organisation promoting scientific skepticism, headquartered in Roßdorf, Germany. Its estimated membership in 2016 is 1300 who are scientists or laypersons interested in science. The GWUP annually hosts a conference with varying key subjects.