Japheth is a distinctive boys' name in United States, ranking #3405 in 2025 with 34 recorded births. The name reached its all-time peak in 2007 with 51 births ranking #2488. Since 1996, the popularity has increased by 78.9%. In 2025, approximately 1 in every 50,238 boys born was named Japheth. STABLE Recent data shows the name is currently stable.