Reilly

Reilly is a unisex given name: about 45% of people named Reilly are men and 55% are women, so a gendered salutation is a coin flip and the neutral form is the safe choice.

UnisexHigh

Male 45%Female 55%

This name is used for both men and women without a strong lean either way.

Verdict: Unisex
Male / female split: 45% male / 55% female
Confidence: High (64 or more weighted country observations)
Most common in: United States
US births since 1880: 4,097 male / 4,986 female
Data: nam_dict (GFDL) + US SSA
Updated: 2026-09-11

How to address Reilly

To address Reilly when you do not know their gender, use the full name with no title: "Dear Reilly," in English, "Guten Tag Reilly," in German. About 45% of people named Reilly are men and 55% 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 Reilly,

German

Guten Tag Reilly,

French

Bonjour Reilly,

Spanish

Estimado/a Reilly:

Chinese

Reilly您好：

Japanese

Reilly様

English

Hi Reilly,

German

Hi Reilly,

French

Salut Reilly,

Spanish

Hola Reilly,

Chinese

Reilly你好：

Japanese

Reilly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

Gender of the name Reilly by country (nam_dict, 55 country columns)
Country	How common	Usually	Male share
United States	common	unisex name	45%

United States birth data

4,097 male · 4,986 female · 9,083 births recorded

Male 45%Female 55%

Since 1980: 45% male.

Frequently asked questions

Is Reilly a male or female name?

Reilly is a unisex given name: about 45% of people named Reilly are men and 55% are women, so a gendered salutation is a coin flip and the neutral form is the safe choice.

How do I address Reilly in an email?

Is Reilly a unisex name?

Reilly is a unisex name: 45% of people named Reilly are men. The split stays close across most of the countries in the data.

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.

Cite this page

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

BibTeX

@misc{dearwho_reilly,
  title  = {Is Reilly a male or female name?},
  author = {{DearWho}},
  year   = {2026},
  url    = {https://dearwho.vercel.app/name/reilly},
  note   = {Data: nam_dict (GFDL), US SSA public domain}
}