Antonius is a distinctive boys' name in United States, ranking #6346 in 2015 with 13 recorded births. The name reached its all-time peak in 2000 with 16 births ranking #4590. Since 1996, the popularity has increased by 18.2%. In 2015, approximately 1 in every 147,404 boys born was named Antonius. RISING Recent data shows the name is currently rising.