Oleg is a distinctive boys' name in United States, ranking #5500 in 2005 with 15 recorded births. The name reached its all-time peak in 2019 with 26 births ranking #4076. Since 1996, the popularity has increased by 25.0%. In 2005, approximately 1 in every 133,143 boys born was named Oleg. FALLING Recent data shows the name is currently falling.