Iwao
Iwao is classified as a male given name in our dataset. A first name alone does not establish someone’s gender or preferred form of address.
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
- Male
- Confidence
- Low (source weight below 8; not an accuracy rate)
- High source frequency in
- Japan, United States
- US records 1880–2017
- 178 male / 0 female
- Data
- nam_dict (GFDL) + US SSA
- Dataset built
- 2026-09-11
How to address Iwao
If you do not know Iwao’s preferred form of address, use a greeting without Mr or Ms: “Dear Iwao,” in English, “Guten Tag Iwao,” 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 Iwao,
German
Guten Tag Iwao,
French
Bonjour Iwao,
Spanish
Estimado/a Iwao:
Chinese
Iwao您好：
Japanese
Iwao様
English
Hi Iwao,
German
Hi Iwao,
French
Salut Iwao,
Spanish
Hola Iwao,
Chinese
Iwao你好：
Japanese
Iwao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 |
|---|---|---|
| Japan | rare | man's name |
| United States | rare | man's name |
United States birth data
178 male · 0 female · 178 births recorded
Frequently asked questions
Is Iwao a male or female name?
Iwao is classified as a male given name in our dataset. A first name alone does not establish someone’s gender or preferred form of address.
How do I address Iwao in an email?
If you do not know Iwao’s preferred form of address, use a greeting without Mr or Ms: “Dear Iwao,” in English, “Guten Tag Iwao,” 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 Iwao a unisex name?
Iwao is classified as generally male 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
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.
DearWho, "Is Iwao a male or female name?", https://www.dearwho.app/name/iwao. Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_iwao,
title = {Is Iwao a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://www.dearwho.app/name/iwao},
note = {Data: nam_dict (GFDL), US SSA public domain}
}