Udo (archbishop of Trier)
| Udo of Nellenburg | |
|---|---|
| Archbishop of Trier | |
| Born | unknown |
| Died | 11 November 1078 Tübingen |
| Burial | |
| House | Nellenburg |
| Father | Eberhard of Nellenburg |
| Mother | Ida |
Udo of Nellenburg (c. 1030 – 11 November 1078) was the Archbishop of Trier from 1066 until his death. He was an important mediator during the height of the Investiture Controversy.