Arnulfo is a distinctive boys' name in United States, ranking #4230 in 2023 with 25 recorded births. The name reached its all-time peak in 1996 with 105 births ranking #1127. Since 1996, the popularity has decreased by 76.2%. In 2023, approximately 1 in every 68,342 boys born was named Arnulfo. RISING Recent data shows the name is currently rising.