Boys' name · since 2007
Leonidus
Leonidus has 158 recorded births since 2007 in federal Social Security data, most heavily in 2008 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #14,422 of 45,481
- all-time among boys
- 158
- born since 2007
- 2010s
- peak decade
Leonidus is not among the current top-ranked boys names; 158 have been recorded since 2007.
According to the U.S. Social Security Administration, Leonidus has been recorded 158 times among boys since 2007, though it is not among the currently most-used boys names, with its heaviest use in the 2010s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 2007 to 2024.
- #14,422 of 45,481 all-time among boys
- 158 born since 2007
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Leonidus ranks #14,422 of 45,481 boys' names by all-time recorded births (highest first). 158 born since 2007, peaking in the 2010s.
- #14,422 of 45,481
- all-time among boys
- 158
- born since 2007
- 2010s
- peak decade
Leonidus's 158 recorded births place it above 68.25% of the 45,481 boys names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Leonidus's usage pattern, beyond the headline number
Leonidus splits its recorded history at 2016: 43% of all births land in the more recent half, 57% in the earlier half, an evenly balanced pattern over time. The single quietest year was 2007 (5 births) -- compare that against the 2008 peak of 16 for a sense of just how much the name's popularity has swung.
Leonidus popularity over time
Annual U.S. births registered with the Social Security Administration · 2007–2024
- Peak year (2008)
- 16
- Annual births at peak, across 18 years of records
Leonidus by decade
2010s is the heaviest window (109 births, 69% of the file).
2010s was Leonidus's strongest decade.
109 babies received the name during that ten-year window, about 69% of all-time use.
Leonidus births by decade
Total births in each ten-year window
- 2000s 21
2000s
21 births
- 2010s
2010s
109 births
- 2020s 28
2020s
28 births
What this shows Peak: 2010s at 109 births (69% of all-time use).
Frequently Asked Questions
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What to do with Leonidus's data
- Leonidus's decade-level peak was the 2010s (109 total births); usage has since declined to 28 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Leonidus
Nearby Names Like Leonidus
Names with a similar sound, spelling, or feel to Leonidus
Compare Leonidus side by side: Leonidus vs Leonard Leonidus vs Leo Leonidus vs Leon
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Leonidus: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2008)
Similar record span (~17 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 2007–2024 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Leonidus draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.