Gabriel Campillo (born 19 December 1978) is a Spanish former professional boxer who competed from 2002 to 2015, and held the WBA light-heavyweight title from 2009 to 2010.

In his next fight, on 8 March 2009, Campillo won his first major regional championship by scoring a unanimous decision over then-reigning European Union super-middleweight champion Lolenga Mock.

In their subsequent rematch, Campillo lost his title to Shumenov via split decision, in a result that was described as controversial by ringside observers.

Further bad luck with judges' scorecards would continue for Campillo when he faced IBF light-heavyweight champion Tavoris Cloud on 18 February 2012, losing a split decision.

In his last series of fights, Campillo suffered numerous knockout losses to Sergey Kovalev, Andrzej Fonfara, Artur Beterbiev, and Marcus Browne.