Costas vs Cosmo

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

Name A

Costas

Boy name · Rank #10994

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Name B

Cosmo

Boy name · Rank #1688

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Which name is more popular?

Metric Costas Cosmo
Current Rank #10994 #1688
Total Births (all years) 285 2,869
Peak Year 1922 2022
Peak Year Births 9 99
Peak Decade 1990ss 1920ss
Gender Boy Boy
First Recorded Year 1916 1910

Births by Decade

Decade Costas Cosmo
1910ss 10 254
1920ss 47 452
1930ss 16 286
1940ss — 191
1950ss 13 191
1960ss 32 121
1970ss 35 128
1980ss 31 108
1990ss 55 172
2000ss 17 254
2010ss 11 282
2020ss 18 430

Recent Annual Births (2014–present)

Year Costas Cosmo
2014 — 14
2015 — 32
2016 — 21
2017 — 42
2018 — 41
2019 — 49
2020 — 60
2021 — 78
2022 7 99
2023 5 94
2024 6 99

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, 1916–2024.

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