Sergei is a distinctive boys' name in United States, ranking #10782 in 2009 with 7 recorded births. The name reached its all-time peak in 1998 with 16 births ranking #4378. Since 1996, the popularity has decreased by 46.2%. In 2009, approximately 1 in every 283,329 boys born was named Sergei. STABLE Recent data shows the name is currently stable.