Colby
3 countries#615 in United States, 2025Popularity across 3 countries
Each line is scaled to its own peak, so you can compare when Colby was in fashion in each country, whatever the population size.
Country by country
United States
58,155 births recorded 1888–2025 · currently #615 · peaked in 2001 with 3,979 births
Most common in: Texas, California, Florida, North Carolina, Pennsylvania
Source: Social Security Administration, official birth-registration data
Scotland
268 births recorded 1997–2025 · currently #278 · peaked in 2024 with 27 births
Source: National Records of Scotland, official birth-registration data
Northern Ireland
70 births recorded 2006–2025 · currently #199 · peaked in 2022 with 11 births
Source: NISRA, official birth-registration data
United States rank history
Colby’s rank among boys’ names, most recent 20 years on record.
| Year | Rank | vs. prior yr |
|---|---|---|
| 2006 | #272 | — |
| 2007 | #283 | ↓11 |
| 2008 | #273 | ↑10 |
| 2009 | #285 | ↓12 |
| 2010 | #280 | ↑5 |
| 2011 | #314 | ↓34 |
| 2012 | #341 | ↓27 |
| 2013 | #400 | ↓59 |
| 2014 | #427 | ↓27 |
| 2015 | #456 | ↓29 |
| 2016 | #529 | ↓73 |
| 2017 | #584 | ↓55 |
| 2018 | #597 | ↓13 |
| 2019 | #612 | ↓15 |
| 2020 | #618 | ↓6 |
| 2021 | #651 | ↓33 |
| 2022 | #600 | ↑51 |
| 2023 | #607 | ↓7 |
| 2024 | #583 | ↑24 |
| 2025 | #615 | ↓32 |
Similar names right now
Ranked directly next to Colby in United States, 2025 — a real popularity match, not a subjective list.