Alexei is a distinctive boys' name in England & Wales, ranking #2440 in 2025 with 9 recorded births. The name reached its all-time peak in 2004 with 15 births ranking #1222. Since 1996, the popularity has increased by 80.0%. In 2025, approximately 1 in every 30,215 boys born was named Alexei. RISING Recent data shows the name is currently rising.