Nephi is a distinctive boys' name in United States, ranking #5207 in 2005 with 16 recorded births. The name reached its all-time peak in 2007 with 26 births ranking #3972. Since 1996, the popularity has increased by 14.3%. In 2005, approximately 1 in every 124,822 boys born was named Nephi. FALLING Recent data shows the name is currently falling.