Koichi vs Koi

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

Name A

Koichi

Boy name

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Name B

Koi

Boy name · Rank #2704

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Which name is more popular?

Metric Koichi Koi
Current Rank Unranked #2704
Total Births (all years) 145 813
Peak Year 1921 2022
Peak Year Births 16 64
Peak Decade 1920s 2010s
Gender Boy Boy
First Recorded Year 1914 1995

Births by Decade

Decade Koichi Koi
1910s 42 -
1920s 81 -
1930s 6 -
1980s 6 -
1990s 5 33
2000s 5 157
2010s - 315
2020s - 308

Recent Annual Births (2014–present)

Year Koichi Koi
2014 - 34
2015 - 22
2016 - 27
2017 - 26
2018 - 34
2019 - 39
2020 - 47
2021 - 53
2022 - 64
2023 - 55
2024 - 49
2025 - 40

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, 1914–2007.

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