| Mrs McArdy | |
|---|---|
| Sire | Tribal Chief |
| Grandsire | Princely Gift |
| Dam | Hanina |
| Damsire | Darling Boy |
| Sex | Mare |
| Foaled | 1974 |
| Country | United Kingdom |
| Colour | Bay |
| Breeder | Lord Grimthorpe |
| Owner | Edith Kettlewell |
| Trainer | Mick Easterby |
| Record | 16:8-0-1 (in Europe) |
| Major wins | |
| Tote Free Handicap (1977) 1000 Guineas (1977) Fen Ditton Stakes (1977) Strensall Stakes (1977) | |
| Awards | |
| Timeform rating 101 (1976), 123 (1977) | |
Mrs McArdy (1974 – 5 August 1991) was a British Thoroughbred racehorse and broodmare best known for winning the classic 1000 Guineas in 1977. She won four minor races as a two-year-old in 1977 before emerging as a top-class performer in the following year. As a three-year-old, she won the Tote Free Handicap before winning the Guineas as a 16/1 outsider. She went on to win the Fen Ditton Stakes when conceding weight to colts and older horses and then took the Strensall Stakes. She was exported to race in the United States but failed to reproduce her European form. After her retirement from racing, she had some success as a broodmare.