Meaning & origin
A reliable meaning for Seiichi isn’t established in our sources yet. Rather than guess, we show what is recorded: how the name is used, how often, and the names it’s connected to.
The story
Published U.S. birth records include this spelling as early as 1919. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Seiichi through the years
- Babies since 1880
- 40
- 40 boys · 0 girls
- Most popular year
- 1919
- 8 babies
- 2025
- 0
- Outside the ranked list
- 2021–25 vs 2016–20
- —
- Too few births to compare
By the numbers
The most recent published U.S. birth count for boys is 6 in 1926. Later missing counts do not mean the name went unused. Published U.S. population figures for this spelling include 111 as a first name in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Seiichi’s family of names
In Japanese usage, Seiichi is a Roman-alphabet rendering of せいいち. In Japanese usage, Seiichi is a Roman-alphabet rendering of 成一. In Japanese usage, Seiichi is a Roman-alphabet rendering of 清一.
The ring: spellings.
Spellings & scripts 6
The same name written differently, including transliterations into other scripts.
People named Seiichi
- Seiichi SakiyaJapanese association football playerborn 1950
- Seiichi OgawaJapanese association football playerborn 1970
- Seiichi ItōJapanese admiral (1890–1945)
- Seiichi NegishiJapanese association football playerborn 1969
- Seiichi MorimuraJapanese novelist and author (1933–2023)
- Seiichi SaitoJapanese association football playerborn 1976
- Seiichi MiyakeJapanese inventor1926–1982
- Seiichi TanabeJapanese actorborn 1969
- Seiichi UchikawaJapanese baseball playerborn 1982
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
If you love Seiichi, these share its style, era, origin or sound, from outside its own family.
Cephas
“as solid as a rock”
>99% boys
Sumner
“a legal official; one who serves summons”
82% boys · 18% girls
Einer
“a leading warrior”
>99% boys
Sigurd
“the protector of victory”
>99% boys
Cyril
“a master or lord”
>99% boys
Cecil
“one who is blind” · “the sixth-born child”
>99% boys
Elroy
“a red-haired young man” · “a king”
>99% boys
Sylvester
“man from the forest”
>99% boys