Arnulfo is a distinctive boys' name in United States, ranking #5653 in 2022 with 16 recorded births. The name reached its all-time peak in 1996 with 105 births ranking #1127. Since 1996, the popularity has decreased by 84.8%. In 2022, approximately 1 in every 109,023 boys born was named Arnulfo. RISING Recent data shows the name is currently rising.