|Full name||Diego Daniel Barreto Cáceres|
|Date of birth||16 July 1981|
|Place of birth||Lambaré, Paraguay|
|Height||1.83 m (6 ft 0 in)|
|2005||→ Almería (loan)||0||(0)|
|2007||Newell's Old Boys||0||(0)|
|2008||→ Cerro Porteño (loan)||4||(0)|
|2009||Sol de América||19||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 03:01, 2 June 2014 (UTC).
Barreto was part of the silver medal-winning Paraguayan football team in the 2004 Olympics. Paraguay booked a quarter-final place with two victories in the qualifying group. The squad finished first, and then beat South Korea in the quarter-finals and Iraq in the semi-finals, before losing to Argentina in the final.
In 2007, Barreto had a spell with Newell's Old Boys in Argentina, but failed to break into the first team, returning to Paraguay in January 2008. However, he signed again for the Paraguayan team in July 2008.
He also holds Italian passport.
In 2008 he spent a month with FC Locarno. He played in only one match, allowing 4 goals in the derby against FC Lugano. Barreto has since returned to Cerro Porteño.
Diego is known for his quick reflexes and for commanding the defense. That makes him one of the best Paraguayan goalkeepers. In July 2015 after not having his contract renewed Diego Barreto moved to Cerro´s archrivals Club Olimpia where he is quickly adapted and is quickly becoming a fan favorite despite his past in Cerro
- Cerro Porteño
- Paraguay U-23
- "World Cup Trivia - Fathers, Sons and Brothers, Uncles and Nephews". RSSSF. 2 October 2014. Archived from the original on 26 February 2015.