| NCIS | |
|---|---|
| Season 9 | |
 Season 9 U.S. DVD cover | |
| Starring | |
| No. of episodes | 24 |
| Release | |
| Original network | CBS |
| Original release | September 20, 2011 – May 15, 2012 |
| Season chronology | |
The ninth season of NCIS, an American police procedural drama, originally aired on CBS from September 20, 2011, through May 15, 2012.