Leonidas is a moderately popular boys' name in United States, ranking #475 in 2023 with 638 recorded births. The name reached its all-time peak in 2022 with 758 births ranking #421. Since 1996, the popularity has increased by 6,280.0%. In 2023, approximately 1 in every 2,678 boys born was named Leonidas. FALLING Recent data shows the name is currently falling.