Sergei is a distinctive boys' name in United States, ranking #5530 in 2000 with 13 recorded births. This places Sergei in the top 46% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1998 with 16 births ranking #4378. In 2000, approximately 1 in every 151,072 boys born was named Sergei. STABLE Recent data shows the name is currently stable.