|Full name||Gabriel Esteban Caballero Schiker|
|Date of birth||5 February 1971|
|Place of birth||Rosario, Santa Fe, Argentina|
|Height||1.74 m (5 ft 9 in)|
|Playing position||Midfielder, Forward|
|FC Juárez (manager)|
|2010–2011||Pachuca (Assistant coach)|
|2015–2016||Cafetaleros de Tapachula|
|2016–2017||Dorados de Sinaloa|
|2017–2018||Cafetaleros de Tapachula|
* Senior club appearances and goals counted for the domestic league only and correct as of 25 November 2009|
‡ National team caps and goals correct as of 17 August 2007
Gabriel Esteban Caballero Schiker (born 5 February 1971 in Rosario, Santa Fe, Argentina) is a Mexican-Argentine footballer professional football coach and former player who is the current manager of FC Juárez.
In 1995, he arrived in Mexico, and has played for Mexican teams such as Santos Laguna, Pachuca, Atlas and Puebla, winning 6 championships (Santos Laguna, Pachuca), most recently with Pachuca on 27 May 2007. He announced his retirement on 18 November 2009.
Caballero became a naturalized Mexican on 11 December 2001, and was later recruited to the national team, with whom he had the chance to play in his first World Cup in 2002, held in South Korea and Japan. Caballero appeared in all three of Mexico's first round matches, against Croatia, Ecuador, and Italy.
After his retirement announced his new job as Assistant coach from his last club, on 14 November 2012 he was announced as the new coach of C.F. Pachuca, after the club terminated their previous coach Hugo Sanchez.
- Primera División Chilena – Top Scorer 1995
- Mexican Championship – Winter 1999, Winter 2001, Apertura 2003, Clausura 2006, Clausura 2007
- CONCACAF Champions' Cup 2007, 2008
- Copa Nissan Sudamericana: 2006
- North American SuperLiga: 2007
- Ascenso MX: Apertura 2016
- Interview in Spanish
- Gabriel Esteban Caballero at BDFA (in Spanish)
- Profile at Guardian stats centre at the Wayback Machine (archived 2012-07-12)
- Profile at the Wayback Machine (archived 2007-03-12) (in Spanish)