| Year: | 2011 |
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| League: | Super League |
| League Rank: | 9th |
| League Wins: | 12 |
| League Draws: | 2 |
| League Losses: | 13 |
| Points For: | 664 |
| Points Against: | 808 |
| Cup: | Challenge Cup |
| Cup Result: | Semi-final |
| Cup Wins: | 3 |
| Cup Losses: | 1 |
| Ceo Title: | Chairman |
| Coach Title: | Head coach |
| Top Tries: | Rangi Chase (15) |
| Top Goals: | Kirk Dixon (102) |
| List: | yes |
| List Link: | List of Castleford Tigers seasons |
The 2011 Castleford Tigers season was the club's 14th year in the Super League. The club finished in 9th place, one position below the play-offs. Castleford also reached the semi-final of the Challenge Cup, but lost 8–10 against Leeds Rhinos in extra time.