Kazuya vs Kaz

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

Name A

Kazuya

Boy name

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Name B

Kaz

Boy name · Rank #3290

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Which name is more popular?

Metric Kazuya Kaz
Current Rank Unranked #3290
Total Births (all years) 65 725
Peak Year 1987 2022
Peak Year Births 8 52
Peak Decade 2000ss 2020ss
Gender Boy Boy
First Recorded Year 1986 1918

Births by Decade

Decade Kazuya Kaz
1910ss — 5
1970ss — 25
1980ss 13 73
1990ss 17 98
2000ss 24 96
2010ss — 180
2020ss 11 248

Recent Annual Births (2014–present)

Year Kazuya Kaz
2014 — 7
2015 — 22
2016 — 22
2017 — 27
2018 — 21
2019 — 35
2020 — 41
2021 — 37
2022 — 52
2023 6 52
2024 — 36
2025 5 30

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, 1986–2025.

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