| The Mentalist | |
|---|---|
| Season 1 | |
 DVD cover | |
| No. of episodes | 23 |
| Release | |
| Original network | CBS |
| Original release | September 23, 2008 – May 19, 2009 |
| Season chronology | |
The first season of The Mentalist premiered on September 23, 2008 and concluded on May 19, 2009. It consisted of 23 episodes.