Roberto Carlos Abbondanzieri (also spelled Abbondancieri, born 19 August 1972), nicknamed El Pato (The Duck), is an Argentine former professional footballer who played as a goalkeeper.

[2] Abbondanzieri earned 49 caps for the Argentina national football team from 2004 to 2008, playing at two Copa America tournaments and the 2006 FIFA World Cup.

However, Abbondanzieri himself then suffered a shoulder injury during a match against River Plate, and the club's third-choice goalkeeper, Cristian Muñoz, took his place.

Abbondanzieri changed his name in July 2002 from Abbondancieri, a misspelling that arose at Argentinian customs when his grandfather immigrated there, to the original spelling that he uses today.

In June 2006, after weeks of speculation, Abbondanzieri signed a three-year contract with Spanish first division Getafe CF, claiming that "it's the right time for me to go to Europe".

On 10 April 2008, in a UEFA Cup quarterfinal second-leg match against Bayern Munich, Abbondanzieri made a vital error in extra time, failing to hold a routine ball from a distant free kick.

Since then, he became a continuous presence in Boca's goal and, in June 2004, he became the goalkeeper for the Argentina national team and has since played in the Copa América 2004 and the South American Qualification for the 2006 FIFA World Cup.

He remained Basile's goalkeeper through the early stages of qualifying for the 2010 World Cup in South Africa but was forced out injured during a 1–1 draw at home to Paraguay.