| U21 EURO Qualifiers 2023/2024 - Appearances as Referee |  |
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| 17/10/2023 | Portugal | - | Greece | 2:0 | 6 | - | - |
| U21 EURO Qualifiers 2023/2024 - Appearances as Referee | |
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|
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| 17/10/2023 | Portugal | - | Greece | 2:0 | 6 | - | - |
| Complete name: | Kristoffer Karlsson |
| Born: | 04/05/1984 |
| Place of birth: |
Sweden |
| Residence: | Helsingborg |
| Nationality: |
Sweden |