Josiah is a popular boys' name in United States, ranking #51 in 2022 with 5,825 recorded births. The name reached its all-time peak in 2017 with 7,073 births ranking #51. Since 1996, the popularity has increased by 369.0%. In 2022, approximately 1 in every 299 boys born was named Josiah. STABLE Recent data shows the name is currently stable.