Kolbey
Kolbey was given to 6 boys in 2025, #11,417 among boys’ names; 265 Americans have been recorded with it since 1990 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Kolbey by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Kolbey?
#11,417 among boys’ names, 2025
Kolbey rose from #11,491 in 2015 to #11,417 in 2025 among boys’ names; its share of boys born rose from 3.1 to 3.5 per million.
20 babies in 2003, the peak
Kolbey peaked in 2003, when 20 babies were given it (15 boys, #5,165 among boys’ names). The 6 births of 2025 are 30% of that peak.
Births by sex.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2025 | 6 | #11,417 | 3.5 |
| 2017 | 6 | #11,555 | 3.2 |
| 2015 | 6 | #11,491 | 3.1 |
| 2014 | 5 | #13,173 | 2.6 |
| 2012 | 6 | #11,609 | 3.2 |
| 2011 | 12 | #6,826 | 6.3 |
| 2010 | 9 | #8,491 | 4.7 |
| 2009 | 18 | #5,216 | 9.1 |
| 2008 | 13 | #6,611 | 6.4 |
| 2007 | 6 | #11,736 | 2.9 |
Every recorded year (27)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2006 | 7 | #10,178 | 3.4 |
| 2005 | 8 | #8,749 | 4.0 |
| 2004 | 13 | #5,995 | 6.5 |
| 2003 | 15 | #5,165 | 7.6 |
| 2002 | 17 | #4,614 | 8.8 |
| 2001 | 11 | #6,252 | 5.7 |
| 2000 | 8 | #7,860 | 4.1 |
| 1999 | 6 | #9,372 | 3.1 |
| 1998 | 16 | #4,309 | 8.4 |
| 1997 | 5 | #10,120 | 2.7 |
| 1996 | 9 | #6,285 | 4.8 |
| 1995 | 7 | #7,431 | 3.7 |
| 1994 | 8 | #6,716 | 4.1 |
| 1993 | 6 | #8,203 | 3.1 |
| 1992 | 8 | #6,424 | 4.0 |
| 1991 | 7 | #6,941 | 3.5 |
| 1990 | 5 | #8,867 | 2.4 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Kolbey a boy’s or a girl’s name?
Of the 265 Americans recorded as Kolbey, 8% are girls and 92% boys. In 2025 it went to 6 boys; SSA lists no girls with it that year (fewer than 5, or none).
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Kolbey: the SSA national file counts each sex separately.
How many people are named Kolbey, and how old are they?
An estimated 260 Americans named Kolbey and born in the U.S. are alive in 2026 (98% of everyone recorded); the median is 23 years old and half are between 17 and 28. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 272 people named Kolbey (71 women and girls, 201 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 256 born in the U.S. The Census count is 6% above that prediction.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
How common is the spelling Kolbey?
Kolbey is a less common spelling of Colby: SSA has recorded 265 Kolbey and 58,155 Colby since 1880.
Of these 6 names spelled alike, given to 73,983 babies since 1880, Kolbey is the fifth most given (<1% of them). In 2025 it was given to 6 of their 817 babies (<1%), the fourth most given that year.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Kolbey
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Kolbey and names like it
- Compare Kolbey and ColbyBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sKolbey peaked in 2003.
- The top names of 2003The year the most babies were named Kolbey.
- The names of Generation ZMost people named Kolbey alive today were born 1997-2012.
- Names starting with KMost given first.