Gustaf "Gösta" Wilhelm Hagelin (October 5, 1897 – December 13, 1983) was a Swedish Army officer and horse rider who competed in the 1924 Summer Olympics.
In 1924 he and his horse Varius won the silver medal with the Swedish eventing team after finishing twentieth in the individual eventing.
Hagelin was lieutenant colonel in the Swedish Army.
- ^ Harnesk, Paul, ed. (1965). Vem är vem?. 3, Götaland, utom Skåne, Halland, Blekinge [Who is Who?. 3, Götaland, except Scania, Halland, Blekinge] (in Swedish) (2nd ed.). Stockholm: Vem är vem. p. 427.