Osiah is a distinctive boys' name in United States, ranking #4437 in 2019 with 23 recorded births. This places Osiah in the top 31% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2025 with 54 births ranking #2508. In 2019, approximately 1 in every 77,972 boys born was named Osiah. RISING Recent data shows the name is currently rising.