| DFB-Pokal 1964/1965 - Appearances as Referee |  |
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| 17/02/1965 | TSV 1860 München | - | 1. FSV Mainz 05 | 1:2 | - | - | - |
| DFB-Pokal 1964/1965 - Appearances as Referee | |
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| 17/02/1965 | TSV 1860 München | - | 1. FSV Mainz 05 | 1:2 | - | - | - |
| Complete name: | Karl Niemeyer |
| Born: | 29/08/1920 |
| Place of birth: |
Bad Godesberg, 
Germany |
| Residence: | Bad Godesberg |
| Nationality: |
Germany |
| Bundesliga (GER) appearances: | 39 |