Is Colby a boy or girl name?

Colby is primarily a boy name in U.S. records: about 7% of recorded births are female.

What is the average age of someone named Colby?

The average Colby alive today is an estimated 27 years old. People named Colby were most often born around 2001.

When was the name Colby most popular?

Colby peaked in 2001 with 3,979 recorded births in the United States.

What vibe does the name Colby have?

In one report's words: sun-faded, coastal, informal. Colby ranks #1000 among all U.S. first names since 1880.

Colby — Name Meaning, Age & Vibe | Understand Your Name

UNDERSTAND YOUR NAME

Origin & Meaning

AI-Written

Derived from an Old Norse place name combining the nickname Koli, meaning dark or coal, with býr, meaning farmstead or village. It settled into English geography in Norfolk and Cumbria before migrating to surnames. American parents adopted it sparingly in the late nineteenth century before adopting it in volume during the late 1990s.

Also answers toCole

Fig. 1 — Births per annum, 1888–2025

SSA Data

1888 peak: 3,979 souls, A.D. 2001 2025

2025: 515 born, falling ↘

Estimated Age

27 yrs

Most Colbys were born around 2001 — old enough to remember phones with buttons.

Peak Reign

2001

№99 that year

Generation

Gen Z, 49%

then Millennial 31% · Gen Alpha 13%

Rarity

Top 2000 all-time

≈58K ever born · now falling

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Estimates from SSA birth records and standard survival rates. Immigration and name changes not counted.

Colby grew up with

SSA Data

Wii Sports·YouTube after school·early Minecraft servers

Generation Distribution — Living Colbys

SSA Data

Gen X 6%Millennial 31%Gen Z 49%Gen Alpha 13%

Data vs. Humans

What the data says

SSA Data

SSA: Colby peaked in 2001.

Estimated average age: 27.

What people think

Opinion Ledger

Awaiting human data — cast the first votes.

Colby sounds like someone born in —

Fig. 2 — Style Coordinates

AI Seed · Votes Override at n=30

Vintage Modern

Formal Casual

Soft Strong

Cast your vote No account · one tap

In your mind, Colby sounds more like a —

Voting opens when the ledger goes live. No account. 24h cooldown per question.

Public Opinion Ledger

Ledger Opens Soon

The public has not yet weighed in on Colby. Early ballots carry the most weight.

First Impressions

AI-Written

The name reads like a youth soccer tournament roster from the turn of the millennium. It suggests someone who spent his formative years in cargo shorts and owned at least one CD burned on a family computer. The energy is athletic, friendly, and firmly situated in the late 1990s and early 2000s. It rarely appears in boardrooms without an explanation.

Field Notes

AI-Written

Field Note 01

The name crossed into the national top one hundred exactly once, in 2001, when about four thousand boys received it in a single year.

Field Note 02

Almost half of all living bearers belong to Generation Z, leaving the average Colby around twenty-seven years old today.

Field Note 03

Roughly seven percent of the historical record belongs to girls, though parents consistently treated it as a boy name.

Notable Colbys

AI-Written

Colby Donaldsontelevision personality, b. 1974

Colby Rasmusbaseball outfielder, b. 1986

Colby Covingtonmixed martial artist, b. 1988

Colby Minifieactress, b. 1992

Adjacent Names

Cody · Tanner · Brody · Chase · Dalton · Dustin

Ephemera — If Colby were a…

AI-Written

City

Wilmington, North Carolina

Color

Sun-bleached navy

Job

Assistant athletic trainer

And what of your name?