Konrad IX the Black | |
|---|---|
| Duke of Oleśnica, Koźle | |
 Coat-of-arms of Silesia | |
| Born | c. 1415 |
| Died | 14 August 1471 |
| Noble family | Silesian Piasts of Oleśnica |
| Spouse(s) | Margareta of Rawa |
| Issue | Barbara of Oleśnica |
| Father | Konrad V Kantner |
| Mother | Margareta |
Konrad IX the Black (Polish: Konrad IX Czarny) (c. 1415 – 14 August 1471) was a duke of Oleśnica, Koźle, half of Bytom and half of Ścinawa since 1450 (with his brothers as co-rulers), and since 1452 sole ruler over Oleśnica, Koźle and half of Bytom.
He was the eldest son of Konrad V Kantner, Duke of Oleśnica by his wife Margareta.