Portal:Argentina/Anniversaries/October/October 3
- 1837 Nicolás Avellaneda, president of Argentina is born.
- 1873 Vicente Gallo, lawyer, academic and politician of the Radical Civic Union is born in San Miguel de Tucumán.
- 1940 Singer Nacha Guevara, is born in Mar de Plata.
- 1942 Roberto Perfumo, former Argentine international footballer is born in Sarandí.