The Earl of Erroll | |
|---|---|
 Arms of the Earl of Erroll | |
| 5th Lord High Constable of Scotland | |
| In office 1437–1462 | |
| Preceded by | William de la Haye |
| Succeeded by | Nicholas Hay |
| Personal details | |
| Born | 1423 Errol, Perthshire, Scotland |
| Died | October 1462 (age 38 or 39) Old Slains Castle, Aberdeenshire |
| Spouse |
Beatrix Douglas (m. 1449) |
| Children | 7, including Nicholas and William |
William Hay, 1st Earl of Erroll (1423 – October 1462) was a Scottish peer. He was the first Earl of Erroll and the second Lord Hay of Erroll.