Colby is a boy name with a modern feel, drawn from real birth records.
| Country | Births on record |
|---|---|
| United States since 1880 | 58,155 births |
| England & Wales since 1996 | 2,437 births |
| Ireland since 1964 | 25 births |
Counts come from national birth registrations: the U.S. Social Security Administration, England & Wales (ONS) and Ireland (CSO). Coverage spans differ, so totals aren't directly comparable across countries.
Babies named Colby per year — United States (1888–2025). United States peaked in 2001 (3,979/yr) · England & Wales peaked in 2024 (223/yr) · Ireland peaked in 2025 (5/yr).
Colby reached its peak in 2001, when it was the #173 most popular baby name in the United States — making it a quintessential 2000s name.
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