Kolby
Every Kolby since 1968 — 13,001 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Kolby
Kolby is uncommon for boys in the United States, ranked #1,225 in 2025 with 165 babies given the name. It is currently declining compared with a decade ago.
Since 1968, 13,001 American babies have been named Kolby — about 90% boys and 10% girls, making it a genuinely unisex name. Its peak came in 2001, when 781 newborns received the name — the signature sound of the 2000s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Kolby stood among all boys' names in any year, or use the compare tool to plot it against other names.
Kolby year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Girls | Girls rank | Boys | Boys rank |
|---|---|---|---|---|
| 2025 | 42 | #3,618 | 165 | #1,225 |
| 2024 | 38 | #3,930 | 156 | #1,265 |
| 2023 | 46 | #3,456 | 167 | #1,199 |
| 2022 | 27 | #4,977 | 159 | #1,238 |
| 2021 | 25 | #5,171 | 151 | #1,263 |
| 2020 | 23 | #5,403 | 170 | #1,146 |
| 2019 | 25 | #5,235 | 153 | #1,237 |
| 2018 | 26 | #5,085 | 182 | #1,088 |
| 2017 | 35 | #4,186 | 166 | #1,146 |
| 2016 | 38 | #3,963 | 219 | #950 |
| 2015 | 35 | #4,192 | 272 | #828 |
| 2014 | 50 | #3,255 | 300 | #777 |
| 2013 | 47 | #3,385 | 304 | #749 |
| 2012 | 19 | #6,748 | 286 | #791 |
| 2011 | 35 | #4,195 | 325 | #705 |
| 2010 | 32 | #4,542 | 344 | #684 |
| 2009 | 31 | #4,749 | 371 | #662 |
| 2008 | 38 | #4,135 | 401 | #618 |
| 2007 | 23 | #6,004 | 378 | #643 |
| 2006 | 16 | #7,691 | 341 | #670 |
| 2005 | 17 | #7,009 | 387 | #586 |
| 2004 | 30 | #4,553 | 497 | #493 |
| 2003 | 29 | #4,476 | 543 | #464 |
| 2002 | 44 | #3,222 | 676 | #385 |
| 2001 | 42 | #3,283 | 739 | #359 |
| 2000 | 55 | #2,691 | 396 | #542 |
| 1995 | 33 | #3,395 | 267 | #634 |
| 1990 | 26 | #3,957 | 155 | #820 |
| 1985 | 20 | #4,058 | 90 | #965 |
| 1980 | — | — | 35 | #1,678 |
| 1975 | — | — | 18 | #2,406 |
| 1970 | — | — | — | — |
| 1965 | — | — | — | — |
| 1960 | — | — | — | — |
| 1955 | — | — | — | — |
| 1950 | — | — | — | — |
| 1945 | — | — | — | — |
| 1940 | — | — | — | — |
| 1935 | — | — | — | — |
| 1930 | — | — | — | — |
| 1925 | — | — | — | — |
| 1920 | — | — | — | — |
| 1915 | — | — | — | — |
| 1910 | — | — | — | — |
| 1905 | — | — | — | — |
| 1900 | — | — | — | — |
| 1895 | — | — | — | — |
| 1890 | — | — | — | — |
| 1885 | — | — | — | — |
| 1880 | — | — | — | — |
Frequently asked questions
How popular is the name Kolby in 2025?
Kolby ranked #1,225 among boys' names in the United States in 2025, with 165 babies given the name, according to Social Security Administration data.
How many people are named Kolby?
13,001 babies have been named Kolby in the United States since 1968, based on Social Security card applications.
When was the name Kolby most popular?
Kolby peaked in 2001, when 781 newborns received the name.
Is Kolby a boy or girl name?
Kolby is used for both: about 10% of babies named Kolby have been girls and 90% boys.
Is the name Kolby rising or falling?
Kolby is declining — less popular now than a decade ago.