IX Reserve Corps (German Empire)
| IX Reserve Corps IX. Reserve-Korps | |
|---|---|
Flag of the Staff of a Generalkommando (1871–1918) | |
| Active | 2 August 1914 - post November 1918 |
| Country | German Empire |
| Type | Corps |
| Size | Approximately 38,000 (on formation) |
| Engagements | World War I |
| Insignia | |
| Abbreviation | IX RK |
The IX Reserve Corps (German: IX. Reserve-Korps / IX RK) was a corps level command of the German Army in World War I.