Hisao
Hisao is a male given name: 99% of people named Hisao are men, and it is recorded as male in 2 of the 2 countries covered.
We have limited data on this name. Treat the verdict as a lead, not a certainty.
- Verdict
- Male
- Male / female split
- 99% male / 1% female
- Confidence
- Low (fewer than 8 weighted country observations)
- Most common in
- Japan, United States
- US births since 1880
- 147 male / 0 female
- Data
- nam_dict (GFDL) + US SSA
- Updated
- 2026-09-11
How to address Hisao
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Hisao," in English, "Guten Tag Hisao," in German. Hisao is a male given name: about 99% of people named Hisao are men. A quick look at a profile confirms it for certain.
Ready-made greetings in six languages
English
Dear Hisao,
German
Guten Tag Hisao,
French
Bonjour Hisao,
Spanish
Estimado/a Hisao:
Chinese
Hisao您好：
Japanese
Hisao様
English
Hi Hisao,
German
Hi Hisao,
French
Salut Hisao,
Spanish
Hola Hisao,
Chinese
Hisao你好：
Japanese
Hisao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 | rare | man's name | 98% |
| United States | rare | man's name | 100% |
United States birth data
147 male · 0 female · 147 births recorded
Frequently asked questions
Is Hisao a male or female name?
Hisao is a male given name: 99% of people named Hisao are men, and it is recorded as male in 2 of the 2 countries covered.
How do I address Hisao in an email?
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Hisao," in English, "Guten Tag Hisao," in German. Hisao is a male given name: about 99% of people named Hisao are men. A quick look at a profile confirms it for certain.
Is Hisao a unisex name?
Hisao is not a unisex name: 99% of people named Hisao are men. Hisao leans strongly male 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 Hisao a male or female name?", https://dearwho.vercel.app/name/hisao (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_hisao,
title = {Is Hisao a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://dearwho.vercel.app/name/hisao},
note = {Data: nam_dict (GFDL), US SSA public domain}
}