Hieu
Hieu is a unisex given name: about 76% of people named Hieu are men and 24% are women, so a gendered salutation is a coin flip and the neutral form is the safe choice.
- Verdict
- Mostly male
- Male / female split
- 76% male / 24% female
- Confidence
- High (64 or more weighted country observations)
- Most common in
- Vietnam, United States
- US births since 1880
- 793 male / 28 female
- Data
- nam_dict (GFDL) + US SSA
- Updated
- 2026-09-11
How to address Hieu
To address Hieu when you do not know their gender, use the full name with no title: "Dear Hieu," in English, "Guten Tag Hieu," in German. About 76% of people named Hieu are men and 24% are women, so a gendered salutation is close to a coin flip, and the neutral form above is the safer choice.
Ready-made greetings in six languages
English
Dear Hieu,
German
Guten Tag Hieu,
French
Bonjour Hieu,
Spanish
Estimado/a Hieu:
Chinese
Hieu您好：
Japanese
Hieu様
English
Hi Hieu,
German
Hi Hieu,
French
Salut Hieu,
Spanish
Hola Hieu,
Chinese
Hieu你好：
Japanese
Hieu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 |
|---|---|---|---|
| Vietnam | common | man's name | 75% |
| United States | uncommon | man's name | 97% |
United States birth data
793 male · 28 female · 821 births recorded
Since 1980: 97% male.
Frequently asked questions
Is Hieu a male or female name?
Hieu is a unisex given name: about 76% of people named Hieu are men and 24% are women, so a gendered salutation is a coin flip and the neutral form is the safe choice.
How do I address Hieu in an email?
To address Hieu when you do not know their gender, use the full name with no title: "Dear Hieu," in English, "Guten Tag Hieu," in German. About 76% of people named Hieu are men and 24% are women, so a gendered salutation is close to a coin flip, and the neutral form above is the safer choice.
Is Hieu a unisex name?
Hieu is not a unisex name: 76% of people named Hieu are men. Hieu 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 Hieu a male or female name?", https://dearwho.vercel.app/name/hieu (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_hieu,
title = {Is Hieu a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://dearwho.vercel.app/name/hieu},
note = {Data: nam_dict (GFDL), US SSA public domain}
}