Tags: Swimmer.
Oleg Lyashko (Uzbek: Олег Ляшко; born October 13 1982) is a retired Uzbekistani swimmer who specialized in butterfly events. Lyashko qualified for the men’s 100 m butterfly at the 2004 Summer Olympics in Athens by posting a FINA B-standard of 56.08 from the Kazakhstan Open Championships in Almaty. He challenged seven other swimmers in heat two including 17-year-old Michal Rubáček of the Czech Republic.