Otto II, Count of Rietberg | |
|---|---|
| Died | 18 July 1389 |
| Buried | Marienfeld Abbey |
| Noble family | Werl-Arnsberg-Cuyk |
| Spouse(s) | Adelaide of Lippe |
| Issue Detail | Conrad IV, Count of Rietberg |
| Father | Conrad III, Count of Rietberg |
| Mother | Ermeswint of Reifferscheidt |
Otto II, Count of Rietberg (died 18 July 1389) was the ruling Count of Rietberg from 1365 until his death.