Cárlos Koller

{{short description|Chilean cyclist}}

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

{{Infobox cyclist

| name = Cárlos Koller

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| birth_date = {{birth date|1890|11|1|df=yes}}

| birth_place = Malleco, Chile

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Cárlos Koller (born 1 November 1890, date of death unknown) was a Chilean cyclist.{{cite web|url=https://www.olympedia.org/athletes/15118 |title=Cárlos Koller |work=Olympedia |access-date=7 May 2021}} He competed in two events at the 1912 Summer Olympics.{{cite sports-reference|url=https://www.sports-reference.com/olympics/athletes/ko/carlos-koller-1.html |archive-url=https://web.archive.org/web/20200418071307/https://www.sports-reference.com/olympics/athletes/ko/carlos-koller-1.html |url-status=dead |archive-date=18 April 2020 |title=Cárlos Koller Olympic Results |access-date=11 May 2013 }}