Japheth is a distinctive boys' name in United States, ranking #4609 in 2008 with 21 recorded births. The name reached its all-time peak in 2007 with 51 births ranking #2488. Since 1996, the popularity has increased by 10.5%. In 2008, approximately 1 in every 97,140 boys born was named Japheth. STABLE Recent data shows the name is currently stable.