Seiki vs Seiji

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

Name A

Seiki

Boy name

Full profile →
Name B

Seiji

Boy name · Rank #9068

Full profile →

Which name is more popular?

Metric Seiki Seiji
Current Rank Unranked #9068
Total Births (all years) 6 517
Peak Year 1917 2007
Peak Year Births 6 19
Peak Decade 1910ss 2000ss
Gender Boy Boy
First Recorded Year 1917 1914

Births by Decade

Decade Seiki Seiji
1910ss 6 16
1920ss — 74
1930ss — 22
1970ss — 28
1980ss — 31
1990ss — 75
2000ss — 116
2010ss — 106
2020ss — 49

Recent Annual Births (2014–present)

Year Seiki Seiji
2014 — 12
2015 — 11
2016 — 7
2017 — 12
2018 — 6
2019 — 5
2020 — 10
2021 — 7
2022 — 7
2023 — 9
2024 — 8
2025 — 8

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, 1917–1917.

← Compare different names