Leonidas

Meaning & origin

Leonidas is a name steeped in ancient Greek history, best known from the Spartan king who famously held the pass at Thermopylae. In the modern U.S., it has experienced a notable resurgence: it was first recorded in 1880, but after a long period of obscurity, it began rising again in 1995 and reached its peak popularity in 2022. As of 2025, it ranks 510, with approximately 1 in 2,890 newborn boys receiving the name. It is most popular in Hawaii, followed by New Mexico and Colorado, reflecting a broad appeal across diverse regions. The name's strong, heroic associations continue to attract parents seeking a distinctive yet historically anchored choice.

Leonidas is derived from the Greek elements "leon" (lion) and "idas" (son of), thus meaning "son of a lion" or simply "lion-like." It is most famously associated with King Leonidas I of Sparta, who led the Spartans at the Battle of Thermopylae in 480 BCE. The name has been used in Greece continuously and gained attention in modern times through popular culture, such as the film "300."