Alexius is a distinctive girls' name in United States, ranking #5987 in 2010 with 22 recorded births. The name reached its all-time peak in 1998 with 121 births ranking #1416. Since 1996, the popularity has decreased by 80.4%. In 2010, approximately 1 in every 80,788 girls born was named Alexius. RISING Recent data shows the name is currently rising.