Ituzaingó (Spanish pronunciation: [itusajŋˈɡo]) is the capital of the Ituzaingó Partido in the Greater Buenos Aires metropolitan area, Argentina, west of Buenos Aires.

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Ituzaingó has been the capital of the Ituzaingó Partido or municipality of Buenos Aires Province since 1995, when the partido was created. Buildings of more than three stories were until recently prohibited, and most houses are only one story high

The shopping area near the train station connecting the city with Buenos Aires City (Downtown) is located surrounding a square, opposite the church, where concerts, cultural events and fairs are held on weekends and holidays.

Ituzaingó is 28 km (17 mi) away from the city of Buenos Aires. It has 38.51 km (14.87 sq mi) of French-style chalets, quiet streets and leafy trees, which coexist in all neighborhoods of the city. According to the last national census of 2010, the population was 168,419 people.

It stands out as the neighborhood of Parque Leloir, one of the largest protected ecological zones of the province, and is also known to be a quiet residential neighborhood with huge houses and the home of many celebrities.

Club Atlético Ituzaingó is the local professional team.

• Ceferino Denis (born 1978), footballer
• Tomás Lanzini (born 1988), footballer
• Ricardo Passano (1922-2012), actor
• Nicolás Peranic (born 1985), footballer
• Fernando Caldeiro (1958-2009), Argentine-American NASA astronaut
• Moria Casán (born 1946), actress, producer, TV and theater personality
• Raúl Perrone (born 1952), filmmaker, cartoonist
• Manuel Lanzini (Born 1991), footballer

• Municipality of Ituzaingó
• Municipal information: Municipal Affairs Federal Institute (IFAM), Municipal Affairs Secretariat, Ministry of Interior, Argentina. (in Spanish)
• La Voz De Ituzaingó - Local newspaper.
• (in English) The Battle of Ituzaingó - History of the battle from which the city takes its name.