Comply or Die is the thoroughbred racehorse which won the 2008 Grand National and finished second in the 2009 race. On 5th April 2008 The 7-1 joint favourite Comply Or Die won four lengths ahead of King Johns Castle (20-1), ridden by Paul Carberry, with Snowy Morning (16-1) a further length-and-a-half back in third. Slim Pickings came in fourth.
The nine-year-old's victory cost William Hill bookmakers in excess of £7 million, jockey Timmy Murphy said “I can't believe it yet, it's the best ride I've ever had over these fences,” The 2008 race was Murphy's 12th attempt at the Grand National. “He got into a lovely rhythm and he jumped fantastic, he picked up again when Paul (Carberry) came at me.”