Hennessey
Hennessey is a female given name: 100% of people named Hennessey are women, and it is recorded as female in 1 of the 1 countries covered.
We have limited data on this name. Treat the verdict as a lead, not a certainty.
- Verdict
- Female
- Male / female split
- 0% male / 100% female
- Confidence
- Low (fewer than 8 weighted country observations)
- Most common in
- United States
- US births since 1880
- 0 male / 314 female
- Data
- nam_dict (GFDL) + US SSA
- Updated
- 2026-09-11
How to address Hennessey
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Hennessey," in English, "Guten Tag Hennessey," in German. Hennessey is a female given name: about 100% of people named Hennessey are women. A quick look at a profile confirms it for certain.
Ready-made greetings in six languages
English
Dear Hennessey,
German
Guten Tag Hennessey,
French
Bonjour Hennessey,
Spanish
Estimado/a Hennessey:
Chinese
Hennessey您好：
Japanese
Hennessey様
English
Hi Hennessey,
German
Hi Hennessey,
French
Salut Hennessey,
Spanish
Hola Hennessey,
Chinese
Hennessey你好：
Japanese
Hennessey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 |
|---|---|---|---|
| United States | rare | woman's name | 0% |
United States birth data
0 male · 314 female · 314 births recorded
Since 1980: 0% male.
Frequently asked questions
Is Hennessey a male or female name?
Hennessey is a female given name: 100% of people named Hennessey are women, and it is recorded as female in 1 of the 1 countries covered.
How do I address Hennessey in an email?
When you do not know their gender for certain, the full name with no title is the safe choice: "Dear Hennessey," in English, "Guten Tag Hennessey," in German. Hennessey is a female given name: about 100% of people named Hennessey are women. A quick look at a profile confirms it for certain.
Is Hennessey a unisex name?
Hennessey is not a unisex name: 0% of people named Hennessey are men. Hennessey 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 Hennessey a male or female name?", https://dearwho.vercel.app/name/hennessey (accessed 2026-09-11). Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_hennessey,
title = {Is Hennessey a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://dearwho.vercel.app/name/hennessey},
note = {Data: nam_dict (GFDL), US SSA public domain}
}