Herfast | |
|---|---|
| Appointed | 1070 |
| Term ended | 1084 |
| Predecessor | Æthelmær, Bishop of Elmham |
| Successor | William de Beaufeu, Bishop of Thetford |
| Orders | |
| Consecration | 1070 |
| Personal details | |
| Died | 1084 |
| Denomination | Roman Catholic Church |
| Lord Chancellor | |
| In office 1068–1070 | |
| Monarch | William I of England |
| Preceded by | Office established |
| Succeeded by | Osmund |
Herfast or Arfast (died 1084) was the first Lord Chancellor of Norman England. He was also Bishop of Elmham and later Bishop of Thetford, after he moved his see there.