Sáenz Peña is a town in Tres de Febrero Partido of Buenos Aires Province, Argentina. It is located in the Greater Buenos Aires urban agglomeration on the border with Buenos Aires.

The first recorded owner of the territory was in 1615, since then it changed ownership many times. In 1850 it was acquired by Manuel Lynch. After his death the land was sold and then divided into lots, this was the impetus which led to the urbanisation of the area. In the early 20th century a railway station was authorised and named after the recently deceased President Luis Sáenz Peña. The station was officially opened on 1 November 1910.

The area quickly grew in importance, in 1912 the area was electrified, in 1920 the first police station and in 1927 the first telephone lines.

• Marco Denevi, writer and dramatist.
• Jonás Gutiérrez, footballer.
• Javier Milei, politician.
• Guido Rodríguez, footballer.
• Leonardo Sbaraglia, actor.

• Municipal information: Municipal Affairs Federal Institute (IFAM), Municipal Affairs Secretariat, Ministry of Interior, Argentina. (in Spanish)