Koji vs Kojo

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

Name A

Koji

Boy name · Rank #4224

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Name B

Kojo

Boy name

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Which name is more popular?

Metric Koji Kojo
Current Rank #4224 Unranked
Total Births (all years) 645 334
Peak Year 2025 1999
Peak Year Births 34 12
Peak Decade 2010s 2000s
Gender Boy Boy
First Recorded Year 1922 1971

Births by Decade

Decade Koji Kojo
1920s 16 -
1970s 27 49
1980s 65 39
1990s 73 70
2000s 146 93
2010s 169 36
2020s 149 47

Recent Annual Births (2014–present)

Year Koji Kojo
2014 15 -
2015 17 6
2016 28 -
2017 13 6
2018 14 -
2019 15 11
2020 12 7
2021 19 8
2022 26 12
2023 33 9
2024 25 -
2025 34 11

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, 1922–2025.

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