1878 in Argentina

Events in the year 1878 in Argentina.

Incumbents

 * President: Nicolás Avellaneda
 * Vice President: Mariano Acosta

Governors

 * Buenos Aires Province: Carlos Casares (until 1 May); Carlos Tejedor (from 1 May)
 * Cordoba: Antonio Del Viso
 * Mendoza Province: Julio Gutiérrez (until 15 February); Elías Villanueva (from 15 February)
 * Santa Fe Province: Servando Bayo then Simón de Iriondo

Vice Governors

 * Buenos Aires Province: Luis Sáenz Peña (until 1 May); José María Moreno (starting 1 May)

Events

 * May 23 - chartering of Bank of the City of Buenos Aires as the Monte de Piedad in a measure against the prevalence of usury in Buenos Aires (mostly targeting the growing wave of immigration in Argentina)

Deaths

 * January 8 – Gauchito Gil, legendary religious figure (b. 1847)