Big Buck's (foaled 16 April 2003) is a retired National Hunt racehorse trained in Britain by Paul Nicholls.

Big Buck's raced thirteen times in France, recording two wins including the Grade II Prix Amadou at Auteuil Hippodrome.

Big Buck's won the Mar-key Group Beginners' Chase beating the Queen's horse Barbers Shop.

While Ruby Walsh was injured, Sam Thomas rode Big Buck's in the Hennessy Gold Cup, where the horse blundered and unseated his jockey.

In December, he ran at Ascot in the Long Walk hurdle and despite looking like he was in trouble at one stage when chasing the front-running Dynaste, he was quickly picked up by Ruby Walsh and swept past him for an 8-length win.

Next up, Big Buck's ran at Cheltenham in January 2012 in the Cleeve Hurdle when his trainer Paul Nicholls and owner Andy Stewart decided it would be good to give the champion staying hurdler one final run before trying to win an unprecedented 4th win in the Ladbrokes World Hurdle at the Cheltenham Festival.

Shortly after Big Buck's' 18th consecutive victory, he was found to have sustained a serious injury that forced him to miss the rest of the season.

Big Buck's was retired on 13 March 2014 after finishing fifth behind More Of That, Annie Power, At Fishers Cross, and Zarkandar in the World Hurdle at Cheltenham Racecourse.