Leonidas is a moderately popular boys' name in England & Wales, ranking #452 in 2025 with 85 recorded births. The name reached its all-time peak in 2021 with 97 births ranking #431. In 2025, approximately 1 in every 3,199 boys born was named Leonidas. STABLE Recent data shows the name is currently stable.
Leonidas is a striking Greek name usually linked with a lion-like meaning. It has a heroic, classical presence and still feels surprisingly usable today.
The name is famous through Leonidas, king of Sparta, which gives it an unmistakable martial and legendary feel. Modern use is helped by the popularity of dramatic ancient names.