Aleksei is a distinctive boys' name in United States, ranking #5653 in 1997 with 10 recorded births. The name reached its all-time peak in 2001 with 25 births ranking #3413. Since 1996, the popularity has decreased by 37.5%. In 1997, approximately 1 in every 188,509 boys born was named Aleksei. FALLING Recent data shows the name is currently falling.