William Grey | |
|---|---|
| 13th Baron Grey de Wilton | |
 An unknown nobleman, thought to be Lord Grey de Wilton in 1547, by Gerlach Flicke, National Gallery of Scotland | |
| Baron Grey de Wilton | |
| Coat of arms |  |
| Tenure | 1520 – 14 December 1562 |
| Predecessor | Richard Grey, 12th Baron Grey de Wilton |
| Successor | Arthur Grey, 14th Baron Grey de Wilton |
| Born | 1508/9 Wilton Castle, Hertfordshire, England |
| Died | 14 December 1562 Cheshunt, Hertfordshire, England |
| Family | Grey |
| Spouse(s) | Lady Mary Somerset of Worcester |
| Issue | Arthur Grey, 14th Baron Grey de Wilton Honora Grey-Denny William Grey |
| Father | Edmund Grey, 9th Baron Grey de Wilton |
| Mother | Florence Hastings |
William Grey, 13th Baron Grey de Wilton KG (1508/1509 – 14 December 1562[1]), was an English baron and military commander serving in France in the 1540s and 1550s, and in the Scottish Wars of the 1540s.