| Club: | Montedio Yamagata |
| Season: | 2012 |
| Manager: | Ryosuke Okuno |
| League: | J.League Division 2 |
| League Result: | - |
| Cup1: | Emperor's Cup |
| Cup1 Result: | - |
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| Prevseason: | 2011 |
| Nextseason: | 2013 |
The 2012 Montedio Yamagata season sees Montedio Yamagata return to J.League Division 2 after being relegated in the 2011 J.League Division 1. This will be their 16th season overall in the second tier. Montedio Yamagata are also competing in the 2012 Emperor's Cup.
See main article: 2012 J.League Division 2.
See main article: 2012 Emperor's Cup.