Colby
Colby 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.
- Verdict
- Male
- Confidence
- High (source weight of at least 64; not an accuracy rate)
- High source frequency in
- United States
- US records 1880–2017
- 50,302 male / 3,773 female
- Data
- nam_dict (GFDL) + US SSA
- Dataset built
- 2026-09-11
How to address Colby
If you do not know Colby’s preferred form of address, use a greeting without Mr or Ms: “Dear Colby,” in English, “Guten Tag Colby,” 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 Colby,
German
Guten Tag Colby,
French
Bonjour Colby,
Spanish
Estimado/a Colby:
Chinese
Colby您好：
Japanese
Colby様
English
Hi Colby,
German
Hi Colby,
French
Salut Colby,
Spanish
Hola Colby,
Chinese
Colby你好：
Japanese
Colby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 |
|---|---|---|
| United States | very common | man's name |
United States birth data
50,302 male · 3,773 female · 54,075 births recorded
Records from 1980–2017: 93.3% male.
Frequently asked questions
Is Colby a male or female name?
Colby 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 Colby in an email?
If you do not know Colby’s preferred form of address, use a greeting without Mr or Ms: “Dear Colby,” in English, “Guten Tag Colby,” 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 Colby a unisex name?
Colby 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 Colby a male or female name?", https://www.dearwho.app/name/colby. Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_colby,
title = {Is Colby a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://www.dearwho.app/name/colby},
note = {Data: nam_dict (GFDL), US SSA public domain}
}