Jethro is a distinctive boys' name in United States, ranking #1302 in 2020 with 139 recorded births. The name reached its all-time peak in 2025 with 245 births ranking #953. Since 1996, the popularity has increased by 717.6%. In 2020, approximately 1 in every 12,411 boys born was named Jethro. RISING Recent data shows the name is currently rising.