Japheth is a distinctive boys' name in United States, ranking #3028 in 2016 with 39 recorded births. The name reached its all-time peak in 2007 with 51 births ranking #2488. Since 1996, the popularity has increased by 105.3%. In 2016, approximately 1 in every 48,646 boys born was named Japheth. STABLE Recent data shows the name is currently stable.