| Grand National | |
| Location | Aintree Racecourse |
|---|---|
| Date | 29 March 1958 |
| Winning horse |  Mr. What |
| Starting price | 18/1 |
| Jockey |  Arthur Freeman |
| Trainer | Tom Taaffe Sr. |
| Owner | David J. Coughlan |
| Conditions | Soft |
| External videos | |
|---|---|
 Highlights of the 1958 Grand National (British Pathé) | |
| British Movietone |
The 1958 Grand National was the 112th renewal of the Grand National horse race that took place at Aintree near Liverpool, England, on 29 March 1958.
From an initial entry of 56 [1] The field of 31 runners competed for record prize money of nearly £14,000. The race was won by 18/1 shot Mr. What, by a distance of 30 lengths. The eight-year-old was ridden by jockey Arthur Freeman and trained by Tom Taaffe Sr., and became the fifth Irish winner of the Grand National since the Second World War.
- ^ Daily Mirror, Friday 10th January 1958, page 14, column 1, Headline: Ireland enter 11