Seiko
Seiko is a female given name: 98% of people named Seiko are women, and it is recorded as female in 1 of the 1 countries covered.
- Verdict
- Female
- Male / female split
- 2% male / 98% female
- Confidence
- Medium (8 to 63 weighted country observations)
- Most common in
- Japan
- Data
- nam_dict (GFDL) + US SSA
- Updated
- 2026-09-11
How to address Seiko
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Seiko," in English, "Guten Tag Seiko," in German. Seiko is a female given name: about 98% of people named Seiko are women. A quick look at a profile confirms it for certain.
Ready-made greetings in six languages
English
Dear Seiko,
German
Guten Tag Seiko,
French
Bonjour Seiko,
Spanish
Estimado/a Seiko:
Chinese
Seiko您好：
Japanese
Seiko様
English
Hi Seiko,
German
Hi Seiko,
French
Salut Seiko,
Spanish
Hola Seiko,
Chinese
Seiko你好：
Japanese
Seikoさん
This is a statistical estimate, not a statement about the gender, identity or correct form of address of any particular person.
Country breakdown
| Country | How common | Usually | Male share |
|---|---|---|---|
| Japan | uncommon | woman's name | 2% |
Frequently asked questions
Is Seiko a male or female name?
Seiko is a female given name: 98% of people named Seiko are women, and it is recorded as female in 1 of the 1 countries covered.
How do I address Seiko in an email?
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Seiko," in English, "Guten Tag Seiko," in German. Seiko is a female given name: about 98% of people named Seiko are women. A quick look at a profile confirms it for certain.
Is Seiko a unisex name?
Seiko is not a unisex name: 2% of people named Seiko are men. Seiko leans strongly female overall.
Related names
Sources
Gender by country: nam_dict, the c't first-names dictionary by Joerg Michael, roughly 44,000 names across 55 countries, licensed GFDL. US frequencies: United States Social Security Administration baby-name data, public domain. Method: how we classify names. Full dataset: data & licences. Data built 2026-09-11.
DearWho, "Is Seiko a male or female name?", https://dearwho.vercel.app/name/seiko (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_seiko,
title = {Is Seiko a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://dearwho.vercel.app/name/seiko},
note = {Data: nam_dict (GFDL), US SSA public domain}
}