Gustav Weder (born 2 August 1961 in Diepoldsau) is a Swiss bobsledder who competed from the late 1980s to the early 1990s.

He was also a Bobsleigh World Cup champion four times (Combined men's: 1988-9, 1990-1; Two-man: 1988-9, Four-man: 1990-1).

Known for his intensity, Weder would videotape every one of his bobsleigh runs he raced on and study those videos for hours.

It was so intense that Weder was caught one night during the FIBT World Championships 1990 in St. Moritz scrapping ice off of a difficult corner on the track.

After studies in Switzerland and Canada, Weder finished his education with a PhD with Arnd Krüger in Social Sciences at the University of Göttingen.