| Club: | Montedio Yamagata |
| Season: | 2011 |
| Manager: | Shinji Kobayashi |
| League: | J. League Division 1 |
| League Result: | 18th (relegated to J2) |
| Cup1: | Emperor's Cup |
| Cup1 Result: | Third round |
| Cup2: | J. League Cup |
| Cup2 Result: | First round |
| Pattern B1: | _whitestripeonright |
| Leftarm1: | 0033BF |
| Body1: | 0033BF |
| Rightarm1: | 0033BF |
| Shorts1: | 0033BF |
| Socks1: | 0033BF |
| Leftarm2: | ffff00 |
| Body2: | ffff00 |
| Rightarm2: | ffff00 |
| Shorts2: | ffff00 |
| Socks2: | ffff00 |
| Prevseason: | 2010 |
| Nextseason: | 2012 |
The 2011 Montedio Yamagata season is Montedio Yamagata's third consecutive season in J. League Division 1. It also includes the 2011 J. League Cup, and the 2011 Emperor's Cup.
See main article: 2011 J. League Division 1.
See main article: 2011 J. League Cup.
See main article: 2011 Emperor's Cup.