| Thomas of Brotherton | |
|---|---|
 Thomas depicted on a medieval roll | |
| Earl of Norfolk | |
| Reign | 1312–1338 |
| Successor | Margaret, Duchess of Norfolk |
| Born | 1 June 1300 Brotherton, Yorkshire |
| Died | 4 August 1338 Framlingham Castle, Suffolk, England |
| Burial | |
| Spouse | Alice de Hales Mary de Brewes |
| Issue | Margaret, Duchess of Norfolk Edward of Norfolk Alice of Norfolk |
| House | Plantagenet |
| Father | Edward I of England |
| Mother | Margaret of France |
Thomas of Brotherton, 1st Earl of Norfolk (1 June 1300 – 4 August 1338), was the fifth son of King Edward I of England (1239–1307), and the eldest child by his second wife, Margaret of France, the daughter of King Philip III of France. He was, therefore, a younger half-brother of King Edward II (reigned 1307–1327) and a full brother of Edmund of Woodstock, 1st Earl of Kent. He occupied the office of Earl Marshal of England.