| Europa League 2011/2012 - Appearances as Referee |  |
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| 15/09/2011 | FC Steaua Bucureşti | - | FC Schalke 04 | 0:0 | 4 | - | - |
| 03/11/2011 | Lazio Roma | - | FC Zürich | 1:0 | 5 | - | - |
| 15/12/2011 | Udinese Calcio | - | Celtic FC | 1:1 | 5 | - | - |
| Europa League 2011/2012 - Appearances as Referee | |
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| 15/09/2011 | FC Steaua Bucureşti | - | FC Schalke 04 | 0:0 | 4 | - | - |
| 03/11/2011 | Lazio Roma | - | FC Zürich | 1:0 | 5 | - | - |
| 15/12/2011 | Udinese Calcio | - | Celtic FC | 1:1 | 5 | - | - |
| Complete name: | Michail Koukoulakis |
| Born: | 25/06/1975 |
| Place of birth: |
Greece |
| Nationality: |
Greece |
| Height: | 190 cm |