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Ryuko

Ryuko is classified as a mostly female given name in our dataset. A first name alone does not establish someone’s gender or preferred form of address.

Mostly femaleLow

Confidence describes the weight of the source data, not a measured accuracy rate.

We have limited data on this name. Treat the verdict as a lead, not a certainty.

Verdict
Mostly female
Confidence
Low (source weight below 8; not an accuracy rate)
High source frequency in
Japan
Data
nam_dict (GFDL) + US SSA
Dataset built
2026-09-11

How to address Ryuko

If you do not know Ryuko’s preferred form of address, use a greeting without Mr or Ms: “Dear Ryuko,” in English, “Guten Tag Ryuko,” in German. Include their family name if you know it. The name’s classification describes its usage. Follow the form of address the person uses for themselves.

Ready-made greetings in six languages

English

Dear Ryuko,

German

Guten Tag Ryuko,

French

Bonjour Ryuko,

Spanish

Estimado/a Ryuko:

Chinese

Ryuko您好：

Japanese

Ryuko様

English

Hi Ryuko,

German

Hi Ryuko,

French

Salut Ryuko,

Spanish

Hola Ryuko,

Chinese

Ryuko你好：

Japanese

Ryukoさん

Greeting generator

This is a statistical estimate, not a statement about the gender, identity or correct form of address of any particular person.

Country breakdown

Classification of Ryuko by country (nam_dict and US SSA; not a survey of today’s population)
CountryHow commonUsually
Japanrarewoman's name

Frequently asked questions

Is Ryuko a male or female name?

Ryuko is classified as a mostly female given name in our dataset. A first name alone does not establish someone’s gender or preferred form of address.

How do I address Ryuko in an email?

If you do not know Ryuko’s preferred form of address, use a greeting without Mr or Ms: “Dear Ryuko,” in English, “Guten Tag Ryuko,” in German. Include their family name if you know it. The name’s classification describes its usage. Follow the form of address the person uses for themselves.

Is Ryuko a unisex name?

Ryuko is classified as generally female in the combined dataset. This does not rule out other uses. Our categories describe the sources, rather than a complete survey of everyone with this name.

Related names

MariFemaleHiroshiMaleKeikoFemaleAkiraUnisexMikaDepends on the countryKenjiMaleMikiDepends on the countryMarikoFemale

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 (1880–2017), public domain. Classifications are not measured accuracy rates. Method: how we classify names. Full dataset: data & licences. US source data (babynames). Dataset built 2026-09-11; this is not a new collection date for the source records.

Cite this page

DearWho, "Is Ryuko a male or female name?", https://www.dearwho.app/name/ryuko. Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.

BibTeX
@misc{dearwho_ryuko,
  title  = {Is Ryuko a male or female name?},
  author = {{DearWho}},
  year   = {2026},
  url    = {https://www.dearwho.app/name/ryuko},
  note   = {Data: nam_dict (GFDL), US SSA public domain}
}