Alexei is a distinctive boys' name in United States, ranking #3107 in 2018 with 37 recorded births. The name reached its all-time peak in 2021 with 51 births ranking #2552. Since 1996, the popularity has increased by 60.9%. In 2018, approximately 1 in every 49,067 boys born was named Alexei. STABLE Recent data shows the name is currently stable.