Events in the year 1877 in Argentina.
Incumbents
Governors
- Buenos Aires Province: Carlos Casares
- Cordoba: Enrique Rodríguez then Antonio Del Viso
- Mendoza Province: Joaquín Villanueva (until 24 December); Julio Gutiérrez (from 24 December)
- Santa Fe Province: Servando Bayo
Vice Governors
- Buenos Aires Province: Luis Sáenz Peña
Events
Births
- February 21 - Enrique Mosconi, military engineer
- April 18 - Carlos Ibarguren
Deaths
- December 29 - Adolfo Alsina
