Jethro is a distinctive boys' name in United States, ranking #1194 in 2018 with 159 recorded births. This places Jethro in the top 8% 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 245 births ranking #953. Since 1996, the popularity has increased by 835.3%. In 2018, approximately 1 in every 11,418 boys born was named Jethro. RISING Recent data shows the name is currently rising.