Gustaf Hagelin

{{Use dmy dates|date=October 2021}}

{{Short description|Swedish equestrian (1897–1983)}}

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{{MedalSport|Men's Equestrian}}

{{MedalSilver|1924 Paris | Team eventing}}

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Gustaf "Gösta" Wilhelm Hagelin (5 October 1897 – 13 December 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.{{cite web|url=https://www.olympedia.org/athletes/12082 |title=Gustaf Hagelin |work=Olympedia |access-date=23 October 2021}}

Hagelin was lieutenant colonel in the Swedish Army.{{cite book |editor1-last=Harnesk |editor1-first=Paul |date=1965 |title=Vem är vem?. 3, Götaland, utom Skåne, Halland, Blekinge |trans-title=Who is Who?. 3, Götaland, except Scania, Halland, Blekinge |edition=2nd |location=Stockholm |publisher=Vem är vem |language=Swedish |url=https://runeberg.org/vemarvem/gota65/0451.html |page=427}}