1890 in Argentina

Events in the year 1890 in Argentina.

Incumbents

 * President: Miguel Ángel Juárez Celman until August 6, Carlos Pellegrini
 * Vice President: Carlos Pellegrini until August 6, then vacant

Governors

 * Buenos Aires Province: Dardo Rocha
 * Cordoba: Marcos Juárez then Eleazar Garzón
 * Mendoza Province: Domingo Bombal (until 10 June); Oseas Guiñazú (from 10 June)
 * Santa Fe Province: José Gálvez then Juan Manuel Cafferata

Vice Governors

 * Buenos Aires Province: Claudio Stegmann (until 1 May); Víctor del Carril (starting 1 May)

Events

 * July 26 - Revolution of the Park

Births

 * May 2 - Teddie Gerard, actress and entertainer (d. 1942)