Big Zeb (foaled 13 May 2001) is a retired, Irish Thoroughbred racehorse who competed in National Hunt racing and was best known for his performances in steeplechases over the minimum distance of two miles. He was slow to mature and made little impact in bumpers and hurdle races before being switched to chasing and winning the Swordlestown Cup Novice Chase in 2008. In the following season he won the Paddy Power Dial-A-Bet Chase but fell twice in five races.