Alexius is a distinctive girls' name in United States, ranking #1901 in 2000 with 89 recorded births. The name reached its all-time peak in 1998 with 121 births ranking #1416. Since 1996, the popularity has decreased by 20.5%. In 2000, approximately 1 in every 20,404 girls born was named Alexius. RISING Recent data shows the name is currently rising.