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Home › Baby Names Directory › Kolby

Kolby

♀ Girl

Pronounced KOHL-bee /ˈkoʊl.bi/High

Meaning: K-spelling of Colby — Old Norse 'Koli's farm/settlement', read 'dark/coal town' — here for girlsMedium

In 30 seconds: A Viking farmstead in K-major: Kolby restyles Colby — 'Koli's (dark one's) settlement' — for daughters. Cheese-aisle friendly, surname-sporty, and warm.
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Origin MediumOld Norse, English
MeaningK-spelling of Colby — Old Norse 'Koli's farm/settlement', read 'dark/coal town' — here for girls
U.S. rank (2025)#3618 ↗ Rising
2025 U.S. births42 girls (0.00% of U.S. girls)
Peak year2000
Total births (all-time)≈ 1,350

Popularity in the U.S. · SSA data

peak 200019782025

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Kolby is a K-spelling of Colby — from Old Norse Koli (a byname for a dark-featured man) plus byr, 'farm, settlement'. A sporty American surname-name, the K-form leans playful and crosses to girls; this page covers that use.

It registers thinly for girls in recent records. Rare for daughters, dark-settlement at the root, and sporty.

Did you know? Colby cheese hails from Colby, Wisconsin — itself named for the Norse-rooted surname — so Kolby's family tree includes both longships and lunchboxes.
Overall data confidence 75%
Behind the Name — Colby — root etymology

Variations

ColbyKolbieKolbi

Nicknames

Kol

Famous Bearers

  • Famous bearers coming soon.

If you like Kolby…

Colby— the standard spelling of the same name
Kelsey— a fellow Norse-rooted girls' pick
Brooklyn— the companion place-name favorite
Kinsley— another K- surname-name for girls

Explore names like Kolby

By themeunisexsurname-namenorse

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Frequently Asked

What does the name Kolby mean?

Kolby is a spelling of Colby, Old Norse for 'Koli's (the dark one's) settlement'.

How do you pronounce Kolby?

It's said KOHL-bee /ˈkoʊl.bi/ — two syllables, stress on the first.

Is Kolby a boy or girl name?

Kolby is used for both sexes; this page covers its use as a girl's name.

How popular is Kolby?

Kolby is a rare name for girls in the U.S.

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