Pablo Nicolás Caballero Santos (locally [ˈpaβlo nikoˈlas kaβaˈʎeɾo]; born 21 July 1986) is an Argentine footballer who plays as a forward for Spanish Primera Federación club Recreativo de Huelva.

Born in Totoras, Santa Fe, Caballero graduated from Racing Club de Avellaneda's youth setup.

He made his professional debut on 24 November 2007, starting in a 0–0 home draw against Independiente for the Primera División championship.

After appearing and scoring regularly, he moved to Chinese Super League side Qingdao Jonoon on 23 July 2013.

[5] On 17 July 2017, free agent Caballero signed a two-year contract with UD Almería still in the second tier.