| 9th Infantry Division | |
|---|---|
&sq=&lang=&file=File:Odznaka_Dywizja_Podlaska.jpg) Badge of the division with the year of its founding on it | |
| Active | 1919 – 5 September 1939 January 1942 – 4 April 1944 – 7 March 1962 |
| Country |  Second Polish Republic |
| Branch | Pomorze Army (1939) Anders Army (1942) Polish People's Army (1944-1962) |
| Role | Infantry |
| Garrison/HQ | Siedlce (1919-1939) Margilon (1942) |
| Engagements | Polish-Soviet War |
The 9th Infantry Division (Polish: 9 Dywizja Piechoty) was a unit of the Polish Army in the Second Polish Republic. For most of 1919, the 9th Division's regiments were dispersed across the regions of Podlachia, Polesie and Volhynia, with one battalion sent to Dąbrowa Basin.