| Sergei Kulbach | |
|---|---|
 Zabijako and Kulbach in 2011 | |
| Born | 24 November 1992 Dnipropetrovsk, Ukraine |
| Died | 23 May 2023 (aged 30) Sisak, Croatia |
| Height | 1.79 m (5 ft 10 in) |
| Figure skating career | |
| Country | Ukraine |
| Began skating | 1996 |
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Sergei Kulbach (24 November 1992 – 23 May 2023) was a Ukrainian pair skater. He won national titles with former partners Elizaveta Usmantseva and Natalja Zabijako. With Zabijako, he also competed at the 2011 World Championships, placing 16th.