Kolby
#3,577 for girls in 2025, 42 births · #1,222 for boys in 2025, 165 births
Given to boys 89.6% of the time
- Peak · boys
- 2001 · 739 births
- Debut · boys
- 5 births
- In top 100 · boys
- neverof 146 years
- Total births · boys
- 11,650since 1968
Kolby over time
Rank within each sex, plotted together. Click any year to open it.
Gaps mean fewer than 5 babies received the name that year, so the SSA doesn't publish it.
Show data table
| Year | girls | boys | ||
|---|---|---|---|---|
| rank | births | rank | births | |
| 2025 | #3,577 | 42 | #1,222 | 165 |
| 2024 | #3,892 | 38 | #1,262 | 156 |
| 2023 | #3,428 | 46 | #1,197 | 167 |
| 2022 | #4,907 | 27 | #1,237 | 159 |
| 2021 | #5,091 | 25 | #1,262 | 151 |
| 2020 | #5,314 | 23 | #1,144 | 170 |
| 2019 | #5,163 | 25 | #1,234 | 153 |
| 2018 | #5,007 | 26 | #1,086 | 182 |
| 2017 | #4,147 | 35 | #1,141 | 166 |
| 2016 | #3,923 | 38 | #950 | 219 |
| 2015 | #4,144 | 35 | #828 | 272 |
| 2014 | #3,226 | 50 | #776 | 300 |
| 2013 | #3,367 | 47 | #749 | 304 |
| 2012 | #6,576 | 19 | #791 | 286 |
| 2011 | #4,151 | 35 | #705 | 325 |
| 2010 | #4,494 | 32 | #684 | 344 |
| 2009 | #4,677 | 31 | #662 | 371 |
| 2008 | #4,089 | 38 | #618 | 401 |
| 2007 | #5,895 | 23 | #642 | 378 |
| 2006 | #7,482 | 16 | #669 | 341 |
| 2005 | #6,820 | 17 | #585 | 387 |
| 2004 | #4,492 | 30 | #493 | 497 |
| 2003 | #4,418 | 29 | #464 | 543 |
| 2002 | #3,196 | 44 | #384 | 676 |
| 2001 | #3,256 | 42 | #359 | 739 |
| 2000 | #2,672 | 55 | #542 | 396 |
| 1999 | #2,675 | 52 | #521 | 407 |
| 1998 | #3,222 | 38 | #550 | 361 |
| 1997 | #4,007 | 27 | #628 | 274 |
| 1996 | #2,966 | 40 | #673 | 244 |
| 1995 | #3,357 | 33 | #631 | 267 |
| 1994 | #3,448 | 32 | #713 | 215 |
| 1993 | #3,422 | 32 | #756 | 191 |
| 1992 | #3,144 | 36 | #705 | 212 |
| 1991 | #4,329 | 23 | #708 | 205 |
| 1990 | #3,909 | 26 | #819 | 155 |
| 1989 | #3,566 | 28 | #932 | 119 |
| 1988 | #4,496 | 19 | #916 | 108 |
| 1987 | #4,660 | 17 | #914 | 106 |
| 1986 | #3,757 | 22 | #1,015 | 83 |
| 1985 | #3,983 | 20 | #963 | 90 |
| 1984 | #3,874 | 20 | #1,320 | 50 |
| 1983 | #10,275 | 5 | #1,296 | 51 |
| 1982 | — | #1,320 | 50 | |
| 1981 | — | #2,418 | 20 | |
| 1980 | — | #1,655 | 35 | |
| 1979 | #8,061 | 7 | #2,104 | 24 |
| 1978 | #8,562 | 6 | #2,205 | 21 |
| 1977 | — | #2,361 | 19 | |
| 1976 | — | #2,245 | 20 | |
| 1975 | — | #2,361 | 18 | |
| 1974 | — | #2,129 | 20 | |
| 1973 | — | #2,513 | 15 | |
| 1972 | — | #2,819 | 12 | |
| 1971 | — | #4,907 | 5 | |
| 1970 | — | — | ||
| 1969 | — | — | ||
| 1968 | — | #4,136 | 5 | |
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| 1880 | — | — | ||
The first year at least five boys were named Kolby! It came in at #4,136, and was given to 5 baby boys.
Quietest stretch: 1968–1971, when fewer than 6 boys a year got the name.
Where Kolby is popular in 2003
- Rank in state
- Top 10
- 11–50
- 51–100
- 101–500
- 501+
- Not published
Hover or tap a state for its numbers.
- Wyoming#119 · 1 in 334
- Idaho#176 · 1 in 642
- Maine#186 · 1 in 927
- Oklahoma#195 · 1 in 867
- Utah#240 · 1 in 1,083
Best ever in a state: #104 in Vermont, 2004.
Show every state
| State | Rank | Births | Share |
|---|---|---|---|
| Wyoming | #119 | 6 | 1 in 334 |
| Idaho | #176 | 13 | 1 in 642 |
| Maine | #186 | 6 | 1 in 927 |
| Oklahoma | #195 | 24 | 1 in 867 |
| Utah | #240 | 20 | 1 in 1,083 |
| Iowa | #252 | 12 | 1 in 1,357 |
| Kansas | #252 | 14 | 1 in 1,191 |
| Nebraska | #256 | 8 | 1 in 1,319 |
| Alabama | #265 | 16 | 1 in 1,477 |
| Tennessee | #265 | 23 | 1 in 1,551 |
| Connecticut | #267 | 9 | 1 in 1,981 |
| West Virginia | #268 | 5 | 1 in 1,814 |
| Oregon | #275 | 14 | 1 in 1,402 |
| Washington | #290 | 22 | 1 in 1,537 |
| Kentucky | #313 | 10 | 1 in 2,305 |
| South Carolina | #352 | 10 | 1 in 2,057 |
| Arkansas | #359 | 7 | 1 in 2,117 |
| Louisiana | #368 | 13 | 1 in 1,977 |
| Mississippi | #396 | 7 | 1 in 2,139 |
| North Carolina | #407 | 20 | 1 in 2,545 |
| Nevada | #413 | 5 | 1 in 2,640 |
| Minnesota | #414 | 9 | 1 in 3,337 |
| Missouri | #416 | 11 | 1 in 3,066 |
| Texas | #435 | 59 | 1 in 2,995 |
| Maryland | #448 | 9 | 1 in 3,241 |
| Pennsylvania | #456 | 16 | 1 in 4,013 |
| Massachusetts | #458 | 8 | 1 in 4,388 |
| Colorado | #504 | 8 | 1 in 3,786 |
| Indiana | #513 | 9 | 1 in 4,268 |
| Georgia | #515 | 16 | 1 in 3,572 |
| Arizona | #535 | 9 | 1 in 4,455 |
| Florida | #557 | 22 | 1 in 4,248 |
| Virginia | #605 | 8 | 1 in 5,182 |
| Ohio | #656 | 10 | 1 in 6,713 |
| Illinois | #714 | 12 | 1 in 6,602 |
| Michigan | #736 | 8 | 1 in 7,086 |
| New York | #843 | 13 | 1 in 8,590 |
| California | #987 | 18 | 1 in 13,947 |
| Alaska | — | — | — |
| Delaware | — | — | — |
| District of Columbia | — | — | — |
| Hawaii | — | — | — |
| Montana | — | — | — |
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| New Jersey | — | — | — |
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| North Dakota | — | — | — |
| Rhode Island | — | — | — |
| South Dakota | — | — | — |
| Vermont | — | — | — |
| Wisconsin | — | — | — |
Ranks are within each state; “1 in N” is out of the boys born there that year. The SSA only publishes a name in a state when 5 or more babies of one sex got it.
See more about Kolby
- 40 spots since 2024 (#1,262 → #1,222)
- 78 spots since 2020 (#1,144 → #1,222)
- 394 spots since 2015 (#828 → #1,222)
- Biggest jump: 357 spots in 1985 (#1,320 → #963)
- Biggest drop: 191 spots in 2017 (#950 → #1,141)
- Debuted 1968
- Peaked 2001 at #359 (739 births)
- Births halved by 2006, 5 yrs later
- Top 10: never
- Top 100: never
- Top 1,000: 31 yrs · run 1987–2016
- Highest: 1 in 2,629 boys born in 2001 were named Kolby (0.04%)
- Latest: 1 in 10,352 boys born in 2025 (0.01%)
- 40.6% of all boys named Kolby (4,729) were born in this decade
- The majority has never changed
Show by decade
| Decade | Births | Best rank | Avg rank |
|---|---|---|---|
| 1960s | 5 | #4,136 (1968) | #4,136 |
| 1970s | 154 | #2,104 (1979) | #2,627 |
| 1980s | 712 | #914 (1987) | #1,275 |
| 1990s | 2,531 | #521 (1999) | #670 |
| 2000s | 4,729 | #359 (2001) | #542 |
| 2010s | 2,551 | #684 (2010) | #894 |
| 2020s | 968 | #1,144 (2020) | #1,221 |
All figures count published births only (names given to at least 5 boys in a year). Registrations before 1937 are incomplete, so early shares and totals run low.
Kolby in 2003
Top girls' names in 2003
Top boys' names in 2003
More about 2003
girls
1,827,145 girls got a published name in 2003; 1 in 63,005 of them was named Kolby, which outranked 76.0% of the 18,439 girls' names that year. The ten most popular names covered 9.6% of girls (24.6% in 1880, 7.0% in 2025).
- #4,307Wesley30
- #4,307Zitlali30
- #4,307Zoriah30
- #4,418Kolby29
- #4,418Aerin29
- #4,418Ailene29
- #4,418Alainna29
- #4,536Aaliyha28
- #4,536Aaryn28
- #4,536Aastha28
Tied with 117 names at #4,418; 3 shown. Tied names share a rank, as in SSA's lists.
Among names in the top 1,000 of either year.
boys
1,975,349 boys got a published name in 2003; 1 in 3,638 of them was named Kolby, which outranked 96.4% of the 12,761 boys' names that year. The ten most popular names covered 11.8% of boys (44.2% in 1880, 8.0% in 2025).
Among names in the top 1,000 of either year.