Alexei is a distinctive boys' name in United States, ranking #2452 in 1998 with 35 recorded births. The name reached its all-time peak in 2021 with 51 births ranking #2552. Since 1996, the popularity has increased by 52.2%. In 1998, approximately 1 in every 54,609 boys born was named Alexei. STABLE Recent data shows the name is currently stable.