Hallo Dandy (1974 - 8 January 2007) was a British-bred Thoroughbred racehorse who competed in National Hunt racing.
He is also known for being discovered in 1994, many years after his retirement, in very poor health highlighting and raising awareness of neglect in ex-racehorses.
Hallo Dandy won the 1984 Grand National, ridden by Welsh jockey Neale Doughty.
Before the race he had been a freely available 33/1 chance for the race at the start of 1984, having been pulled up in the Hennessey Cognac Gold Cup but was the subject of huge gambles when the handicapper seemed to have completely underestimated him by raising him just 1 lb in the weights to run carrying ten stones 2 lbs.
Following his retirement from racing Hallo Dandy was loaned to the Earl of Onslow, who rode him to hounds with the Fernie Hunt in Leicestershire.