Ademar Caballero

{{short description|Brazilian swimmer 1918–1982}}

{{Use dmy dates|date=September 2022}}

{{Infobox swimmer

| name= Ademar Caballero

| image=

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| fullname = Ademar Alberto Novo Caballero

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| nationality = {{BRA}}

| strokes = Backstroke

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| birth_date = {{birth date|df=yes|1918|12|2}}

| birth_place = Rio de Janeiro, Brazil

| death_date = {{death date and age|df=yes|1982|3|25|1928|12|2}}

| death_place = Rio de Janeiro, Brazil

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Ademar Alberto Novo Caballero (2 December 1918 – 25 March 1982) was an Olympic backstroke swimmer from Brazil, who participated at one Summer Olympics for his native country.{{cite Sports-Reference |title=Ademar Caballero |url=https://www.sports-reference.com/olympics/athletes/ca/ademar-caballero-1.html |accessdate=29 June 2013 |archive-url=https://web.archive.org/web/20200418033004/https://www.sports-reference.com/olympics/athletes/ca/ademar-caballero-1.html |archive-date=18 April 2020 |url-status=dead}} At the 1936 Summer Olympics in Berlin, he swam the 100-metre backstroke, not reaching the finals.