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Kolby
OriginSpelling variation of Colby
GenderBoy
About Kolby
The name Kolby peaked for boys at #359 in 2001. The name is most popular in Maine, Hawaii, and Alabama. Kolby is occasionally used for girls in 2025.
2 syllables.
As of September 2026, Kolby ranked #1225 in US births in 2025 SSA, peaked at #359 in 2001.
Popularity & trends
US popularity — history
US rank, lower is more popular · SSA data 2014–2025
Actual · SSA
20142025
18802025
Data table
| Year | US rank | Births | Per million |
|---|---|---|---|
| 2014 | #777 | 300 | 156.2 |
| 2015 | #828 | 272 | 141.9 |
| 2016 | #950 | 219 | 115.4 |
| 2017 | #1,146 | 166 | 89.7 |
| 2018 | #1,088 | 182 | 100.2 |
| 2019 | #1,237 | 153 | 85.3 |
| 2020 | #1,145 | 170 | 98.5 |
| 2021 | #1,263 | 151 | 86.3 |
| 2022 | #1,238 | 159 | 91.1 |
| 2023 | #1,198 | 167 | 97.6 |
| 2024 | #1,268 | 155 | 90 |
| 2025 | #1,225 | 165 | 96.6 |
World rankings
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