Ordulf, Duke of Saxony
| Ordulf | |
|---|---|
| Duke of Saxony | |
| Reign | 1059–1072 | 
| Predecessor | Bernard II | 
| Successor | Magnus | 
| Born | c. 1022 | 
| Died | 28 March 1072 | 
| Burial | Saint Michael Church in Lüneburg | 
| Spouse | Wulfhild of Norway Gertrude of Haldensleben | 
| Issue | Magnus, Duke of Saxony | 
| House | House of Billung | 
| Father | Bernard II | 
| Mother | Eilika of Schweinfurt | 
Ordulf (sometimes Otto) (c. 1022 – 28 March 1072) was the duke of Saxony from 1059, when he succeeded his father Bernard II, until his death. He was a member of the Billung family.