The Earl of Erroll | |
|---|---|
 Arms of the Earl of Erroll | |
| 7th Lord High Constable of Scotland | |
| In office 1470–1507 | |
| Preceded by | Nicholas Hay |
| Succeeded by | William Hay |
| Personal details | |
| Born | c. 1449 Errol, Perthshire, Scotland |
| Died | 14 January 1507 (age 70 or 71) Huntly, Aberdeenshire |
| Spouse(s) | Isabel Gordon Elizabeth Leslie |
| Children | 7, including William |
| Parent(s) | William Hay, 1st Earl of Erroll Beatrix Douglas |
William Hay, 3rd Earl of Erroll PC (c. 1449 – 14 January 1507) was a Scottish peer. He was the third Earl of Erroll and the fourth Lord Hay of Erroll.