Boy name
Leonidas
As of 2025, Leonidas ranks #510 among American boys' names, according to Social Security records. 591 boys received the name that year. Popularity is fading: #457 five years ago, #510 now. SSA records for Leonidas go back to 1880; the peak came in 2022 at #421, with 760 babies named that year. Geographically, it's strongest in Hawaii, where it ranks #180 among boy names.
Rankings
2025 rank
#510
among boy names
Trend
Falling
last 5 years
All-time peak
#421
in 2022 (2020s)
Babies in 2025
591
boys named Leonidas
Leonidas popularity, 1880–2025
Where Leonidas is most popular
Share of boys born in 2025:lowhighno data (< 5 births)
Strongest states: Hawaii (#180), New Mexico (#236), Colorado (#293)
Uniqueness score
41/ 100Balanced
everywhereone of a kind
Well known, but far from crowded — the middle of the field. Based on how many babies per birth were named Leonidas in the most recent year of SSA data.