Leonidus vs Leo

Side-by-side comparison of Leonidus and Leo — popularity rank, total births, peak decade, and historical trends from Social Security Administration data.

Name A

Leonidus

Boy name · Rank #11705

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Name B

Leo

Boy name · Rank #24

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Which name is more popular?

Metric Leonidus Leo
Current Rank #11705 #24
Total Births (all years) 157 251,760
Peak Year 2008 2022
Peak Year Births 16 8,290
Peak Decade 2010ss 2010ss
Gender Boy Boy
First Recorded Year 2007 1880

Births by Decade

Decade Leonidus Leo
1880ss — 2,098
1890ss — 4,691
1900ss — 5,629
1910ss — 26,656
1920ss — 36,960
1930ss — 22,864
1940ss — 16,962
1950ss — 15,537
1960ss — 9,485
1970ss — 5,365
1980ss — 4,542
1990ss — 4,738
2000ss 21 12,274
2010ss 109 44,700
2020ss 27 39,259

Recent Annual Births (2014–present)

Year Leonidus Leo
2014 13 3,976
2015 13 4,602
2016 12 5,299
2017 6 5,965
2018 15 6,772
2019 7 7,501
2020 8 7,222
2021 — 7,802
2022 6 8,290
2023 7 8,152
2024 6 7,793

Data Sources

Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, ssa.gov/oact/babynames.
Source: SSA Annual Name Rankings, 2007–2024.

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