Aloysius is a distinctive boys' name in United States, ranking #7554 in 2001 with 8 recorded births. The name reached its all-time peak in 2017 with 28 births ranking #3782. Since 1996, the popularity has decreased by 20.0%. In 2001, approximately 1 in every 242,854 boys born was named Aloysius. RISING Recent data shows the name is currently rising.