| Olga Laiuk | |
| Nationality: | Ukrainian |
| Birth Date: | 17 May 1984 |
| Birth Place: | Kyiv, Ukraine |
| Position: | Right back |
| Currentclub: | Kastamonu Bld. GSK |
| Clubnumber: | 2 |
| Nationalteam1: | Ukraine |
| Nationalcaps1: | 27 |
| Nationalgoals1: | 51 |
Olga Laiuk (born Ukrainian: Ольга Лаюк; 17 May 1984) is a Ukrainian handballer player for Kastamonu Bld. GSK and the Ukrainian national team.
She played for HC Spartak Kyiv (2001–2007) and HC Motor Zaporizhzhia (2007–2009) in her country before she moved to Spain to join BM Parc Sagunt. In 2011, she transferred to the Turkish team Muratpaşa Bld. SK, where she played 2015. Currently, she plays for Kastamonu Bld. GSK.