Arnulfo is a distinctive boys' name in United States, ranking #5445 in 2024 with 17 recorded births. The name reached its all-time peak in 1996 with 105 births ranking #1127. Since 1996, the popularity has decreased by 83.8%. In 2024, approximately 1 in every 100,901 boys born was named Arnulfo. RISING Recent data shows the name is currently rising.