Total births
11,650
Unisex name · since 1968
Kolby
Kolby has 11,650 recorded births since 1968 in federal Social Security data, most heavily in 2001 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #1265
- among boys today
- 11,650
- born since 1968
- 2000s
- peak decade
- 91%
- more common than other boys
11,650 babies have been named Kolby since 1968, making it today's #1265 unisex name.
Kolby has 11,650 recorded births among boys since 1968, per the U.S. Social Security Administration, ranked #1265 as of the latest data, more common than 91% of boys, busiest in the 2000s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1968 to 2025.
- #1265 among boys today
- 11,650 born since 1968
- 2000s peak decade
- 91% more common than other boys
Data updated Jun 2026
The verdict
Kolby is currently the #1265 unisex name in America, more common than 91% of boys - 11,650 born since 1968, peaking in the 2000s.
- #1265
- among boys today
- 11,650
- born since 1968
- 2000s
- peak decade
- 91%
- more common than other boys
Kolby vs. every other boys name in current SSA rankings
#1265
of 14,294 boys in use
More common than 91% of names given to boys today.
2000s
Peak decade
41% of everyone ever named Kolby was born in this single decade.
2001
Single peak year
739 babies were named Kolby in 2001 - its busiest year on record.
How Kolby compares
11,650 Top 8% higher than 92% of 14,294 names currently given to boys
Based on all-time total births among currently-ranked boys names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Kolby's all-time total is 32x the median boys name, and Liam still leads by a wide margin.
| Metric | Kolby | Median boys name (Elchonon) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 11,650 | 367 | 358,536 |
| Peak-year births | 739 | 23 | 22,252 |
Kolby's usage pattern, beyond the headline number
Splitting Kolby's full recorded timeline at 1998, 77% of its total births fall in the more recent half of the record versus 23% in the earlier half -- usage has skewed toward the present, not a one-decade spike. Its quietest year on record was 1968, with just 5 recorded births -- worth weighing against the 2001 peak of 739 to see the full range of the name's swing in popularity.
Kolby at a glance
Outside the top 1,000Peak year
2001
Current rank
#1,265
Active since
1968
Kolby popularity over time - boys
Annual U.S. births registered with the Social Security Administration · 1968–2025
- Peak year (2001)
- 739
- Annual births at peak, across 58 years of records
Kolby popularity over time - girls
1,351 total births recorded since 1978 (Kolby as girls' name)
Kolby by decade
Total births in each ten-year window, peak vs trough at a glance
2000s was Kolby's strongest decade.
4,729 babies received the name during that ten-year window, about 41% of all-time use.
Kolby births by decade
Total births in each ten-year window
- 1960s 5
1960s
5 births
- 1970s 154
1970s
154 births
- 1980s 712
1980s
712 births
- 1990s
1990s
2,531 births
- 2000s
2000s
4,729 births
- 2010s
2010s
2,551 births
- 2020s 968
2020s
968 births
What this shows Peak: 2000s at 4,729 births (41% of all-time use).
How Kolby compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Kolby's total volume
Kolby vs 15 similarly-sized boys names
Kolby by state
Where Kolby concentrates geographically, total births since 1968
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Texas | | 1,294 | 11.1% |
| #2 | California | | 475 | 4.1% |
| #3 | Utah | | 448 | 3.8% |
| #4 | Florida | | 404 | 3.5% |
| #5 | Louisiana | | 396 | 3.4% |
| #6 | Georgia | | 394 | 3.4% |
| #7 | Missouri | | 383 | 3.3% |
| #8 | Oklahoma | | 382 | 3.3% |
Texas share of Kolby's total US births 11.1%
Even split
1,294 of 11,650 births nationwide. Compared to a flat distribution across 46 reporting states.
Kolby appears in 46 states. Explore state details →
Frequently Asked Questions
How popular is the name Kolby? ▼
Since 1968, Social Security records show 11,650 babies named Kolby. Today it holds rank #1265 among boys. Its busiest year on record was 2001, with 739 births.
When was Kolby most popular? ▼
Kolby was most popular in the 2000s decade with 4,729 total births. The single peak year was 2001.
Where is Kolby most popular? ▼
The top states for the name Kolby are Texas (1,294 births), California (475 births), Utah (448 births).
Is Kolby a unisex name? ▼
Yes, Kolby is used for both boys and girls. As a boy's name it has 11,650 births, and as a girl's name it has 1,351 births.
How long has the name Kolby been used? ▼
Records for Kolby go back to 1968, giving 58 years of history through 2025.
What names are similar to Kolby? ▼
Names with a similar sound or spelling include Kolton, Kole, Kolten, Kolt, and 4 more. These share a common prefix and are also used for boys.
What to do with Kolby's data
- Kolby's decade-level peak was the 2000s (4,729 total births); usage has since declined to 968 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Texas records the most Kolbys (1,294 births) -- see the full state breakdown if geography matters to your decision. Texas names
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Kolby
Nearby Names Like Kolby
Names with a similar sound, spelling, or feel to Kolby
Kolton Boy
#529 17,169 births
Kole Boy
#1200 9,785 births
Kolten Boy
#1456 5,929 births
Kolt Boy
#1260 3,074 births
Kollin Boy
#4011 2,777 births
Compare Kolby side by side: Kolby vs Kolton Kolby vs Kole Kolby vs Kolten
Related Names
Names with a similar popularity rank to Kolby
Sami #1264
5,303 births · Peak 2025
Hakeem #1266
6,299 births · Peak 1989
Rian #1263
5,624 births · Peak 2021
Xzavier #1267
8,424 births · Peak 2011
Jessie #1262
111,331 births · Peak 1922
Maison #1268
4,575 births · Peak 2016
Syaire #1261
1,005 births · Peak 2025
Eythan #1269
1,054 births · Peak 2025
Data Sources
Data as of June 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1968–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Kolby: #1265 Unisex Name - 11,650 Births, Peak 2001." NameAlmanac. Accessed via https://namealmanac.com/name/kolby. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Kolby draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.