Colby
A boys’ name of Old English origin, meaning coal town; a place name surname.
How Colby has moved
View as table
| Year | US rank |
|---|---|
| 2015 | #457 |
| 2016 | #530 |
| 2017 | #584 |
| 2018 | #597 |
| 2019 | #609 |
| 2020 | #618 |
| 2021 | #651 |
| 2022 | #597 |
| 2023 | #604 |
| 2024 | #582 |
| 2025 | #615 |
Colby by the numbers
In 2025, 222 babies in England and Wales were named Colby. In the US, 510 were, though that figure is from 2017, the most recent full year we hold.
For the size of the two countries, it is given noticeably more often in England and Wales than in the US.
Its American peak was 3,859 babies in 2001, so it is a 2000s name that has since fallen a long way.
At its height, in 2005, about 1 in 1,300 American boys born that year was called Colby.
Spelled almost the same
Other names in the records within a letter or two of Colby. Close spellings are not always related names, but they are usually worth seeing together.
Sounds like Colby
Names that are said the same way as Colby, however they are written. Sounding alike does not mean they share a history.
Names about as common as Colby
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