Caio vs Cain

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

Name A

Caio

Boy name · Rank #3737

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Name B

Cain

Boy name · Rank #975

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Which name is more popular?

Metric Caio Cain
Current Rank #3737 #975
Total Births (all years) 687 7,441
Peak Year 2023 2014
Peak Year Births 40 330
Peak Decade 2010ss 2010ss
Gender Boy Boy
First Recorded Year 1990 1910

Births by Decade

Decade Caio Cain
1910ss — 31
1920ss — 51
1930ss — 35
1940ss — 15
1950ss — 38
1960ss — 73
1970ss — 257
1980ss — 380
1990ss 73 1,046
2000ss 209 1,480
2010ss 250 2,813
2020ss 155 1,222

Recent Annual Births (2014–present)

Year Caio Cain
2014 21 330
2015 23 326
2016 11 324
2017 24 262
2018 32 251
2019 34 284
2020 24 254
2021 32 235
2022 29 253
2023 40 250
2024 30 230

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, 1990–2024.

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