Seiko
Gender-neutral name · Japanese
- US rank
- Unranked
- Syllables
- 2
- Peak
- #4,814 in 1919
0 babies were named Seiko in the US in 2025.
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US births per million girls, 1919–2025
US births per million boys, 1921–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Seiko you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- HistorySeiko first shows up in US birth records in 1919, the first year at least 5 babies got it. It has been in use for 106 years since.
- Best yearIts best year was 1919, when it reached #4,814.
About the name Seiko
Seiko is a gender-neutral name of Japanese origin. It has 5 letters and 2 syllables, starting with S and ending in “-iko”. US birth records list Seiko for girls from 1919 to 2009, in 2 of those 91 years. Its best year was 1919, when it ranked #4,814 among girl names. It hasn't been given to 5 or more US babies in a year since 2009, so today it's a genuinely rare choice.
Origin:Japanese names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1910s | 4.4 | 227,273 girls |
| 2000s | 0.3 | 3,030,303 girls |
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1920s | 4.3 | 231,481 boys |
More Japanese names
- Unisex name: Asa · healer
- Unisex name: Akira · bright, clear
- Unisex name: Mars · god of war
- Unisex name: Sora · sky
- Unisex name: Namir · leopard
- Girl name: Terra · earth
- Unisex name: Sakura · cherry blossom
- Boy name: Ken · handsome
Questions about the name Seiko
What is the origin of the name Seiko?
Seiko has Japanese roots in our records. Other Japanese names include Asa, Akira, Mars.
Is Seiko a boy or girl name?
Both. Seiko is used for boys and girls.
How popular is the name Seiko?
Seiko is rare: fewer than 5 US girls got it in 2025, and it was last given to 5 or more in 2009. It peaked at #4,814 in 1919.