Jethro is a distinctive boys' name in United States, ranking #1486 in 2015 with 112 recorded births. The name reached its all-time peak in 2025 with 245 births ranking #953. Since 1996, the popularity has increased by 558.8%. In 2015, approximately 1 in every 17,109 boys born was named Jethro. RISING Recent data shows the name is currently rising.