Name Awesome

Kolby

#1,225 in 2025UnisexBoys' nameGirls' name

Charcoal + settlement, through Colby

Kolby has been given to 13,001 babies in the U.S. since 1968. In 2025 it ranked #1,225 of 13,926 boys’ names in use. Its peak year was 2001, with 739 recorded. It's used for both sexes: 90% boys, 10% girls all-time.

Babies named Kolby, 2025

1 in 20,100

Kolby over time, 1880–2025

BoysGirls
020040060080018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Girls or boys — Kolby over time

In 2025, Kolby went to 20% girls and 80% boys.

19682025

A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.

Kolby: meaning, origin, and history

Charcoal + settlement, through Colby

Deeper origin not confirmed in the cited records

What Kolby means

Kolby belongs to the name family reached through Kolby → Colby. Its meaning is “charcoal + settlement”.

Origin, language, and formation

Kolby is used in English.

Related names and everyday forms

Related names include Colby.

American usage and historical context

In the United States, 11,650 boys were recorded with the name Kolby between 1968 and 2025. Its highest annual count was 739 in 2001; its best national rank was #359 in 2001.

Over 5 years its rank fell, from #1,146 in 2020 to #1,225 in 2025. Over 10 years its rank fell, from #828 in 2015 to #1,225 in 2025.

In the United States, 1,351 girls were recorded with the name Kolby between 1978 and 2025. Its highest annual count was 55 in 2000; its best national rank was #2,686 in 1999.

Over 5 years its rank rose, from #5,399 in 2020 to #3,617 in 2025. Over 10 years its rank rose, from #4,191 in 2015 to #3,617 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Kolby?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 20,100
165 of 3,315,165 births
Among boys only
1 in 10,400
<0.01% of boys
Rank, 2025
#1,225
of 13,926 boys’ names in use
Coin-flip room size
13,928 kids
Even odds of a second one

Where Kolby sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 5002%

Put another way: gather 13,928 children born in 2025 and it's an even bet that one of them is another Kolby. In a class of 30 the chance is Under 1%.

When Kolbys were born

Half of everyone ever recorded as Kolby was born before 2004 — so the typical Kolby is around 21 today.

Median birth year
2004
About 21 years old
Biggest decade
2000s
40.6% of all use
Born in the last 25 years
67.4%
A modern name
Recorded since 1950
11,650
People you could plausibly meet
Choose a decade

2000s — 40.6% of all recorded uses (4,729).

Is Kolby rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
+40
Places climbed
Rank vs 5 years ago
−79
Places dropped
Rank vs 10 years ago
−397
Places dropped
Births vs 10 years ago
0.61×
Fewer babies than then
Share of its own peak
22.3%
Peak was 2001 (739)
Years since peak
24
Years
Year-to-year steadiness
Steady
9.6% average annual change
Best rank ever
#359
2001

Spellings of Kolby

Kolby is not the most common spelling — Bobby is, with 48.2% against Kolby's 1.8%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Kolby is used — boys

Across 2016–2025, Kolby was most concentrated in Alabama — about 1 in 4,348 boys, against 1 in 12,548 across all states with data. It was least common in New York (1 in 50,000).

223 per 100,000

Most concentrated

  1. 1Alabama1 in 4,348
  2. 2Missouri1 in 4,545
  3. 3Kentucky1 in 5,556
  4. 4Tennessee1 in 6,250
  5. 5Arkansas1 in 6,667
  6. 6Hawaii1 in 7,143
  7. 7Georgia1 in 7,692
  8. 8North Carolina1 in 7,692

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings.

Where Kolby is used — girls

Across 1910–2025, Kolby was most concentrated in Texas — about 1 in 100,000 girls, against 1 in 360,393 across all states with data. It was least common in North Carolina (1 in —).

01 per 100,000

Most concentrated

  1. 1Texas1 in 100,000
  2. 2California1 in —
  3. 3Indiana1 in —
  4. 4Louisiana1 in —
  5. 5North Carolina1 in —

Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Kolby has too little recent state data to map, so this covers all years from 1910.

Kolby around the world

Where Kolby ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • England & Wales
    2005–2025
    #1,359
    in 2025
  • Scotland
    2014–2024
    #727
    in 2024
  • Northern Ireland
    2013–2023
    #312
    in 2023
  • Canada
    1991–2024
    #1,232
    in 2024
  • South Australia
    1986–2009
    #708
    in 2009

Popularity data from Office for National Statistics, National Records of Scotland, Northern Ireland Statistics and Research Agency, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS, NISRA data under Open Government Licence v3.0. StatCan data under Statistics Canada Open Licence. CBS SA data under CC BY 4.0.

Notable people named Kolby

People whose public names include Kolby, backed by Wikidata given-name records and ordered by linked Wikimedia pages. The name may be a middle name.

People data from Wikidata (CC0). Fame is measured, not judged — the order reflects how widely each person is documented, not the U.S. birth records popularity this page is otherwise about.

Kolby by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
#1,225
Trend vs 5 yrs ago
Down 79
Best rank ever
#359
2001
Peak year
2001
739 that year
First recorded
1968
Last recorded
2025
All-time count
11,650
Count in 2025
165

As a girl's name

Rank in 2025
#3,617
Trend vs 5 yrs ago
Up 1,782
Best rank ever
#2,686
1999
Peak year
2000
55 that year
First recorded
1978
Last recorded
2025
All-time count
1,351
Count in 2025
42

Names similar to Kolby

Matched on shared beginnings and endings, similar length, and comparable popularity.

KoleKoltonKoltenKolinKolbeKoltKollinKelbyShelbyKolsonKolterColbyKoltynKoltinKolsenKolbieSelbyKoldenKolsynKolbeyKolesonKolJacolbyKolbi

Names with a curve like Kolby

Not spelling — timing. These names rose, peaked and faded in the same years as Kolby, so they read as being from the same moment even when they look nothing alike.

UlisesDavionBrennenJaylonCamronKeyonShamarGarrisonDevenMaximillianJavonOsvaldo

Sibling names for Kolby

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Kolby

Top names of 2001, Kolby's peak yearThe 2000s in fullOther names that peaked in 2001Boys' names starting with K