Sergei is a distinctive boys' name in United States, ranking #9544 in 2021 with 8 recorded births. The name reached its all-time peak in 1998 with 16 births ranking #4378. Since 1996, the popularity has decreased by 38.5%. In 2021, approximately 1 in every 218,530 boys born was named Sergei. STABLE Recent data shows the name is currently stable.