Alexei is a distinctive boys' name in United States, ranking #2783 in 2003 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 2003, approximately 1 in every 56,436 boys born was named Alexei. STABLE Recent data shows the name is currently stable.