Colby
4 countries#615 in United States, 2025Popularity across 4 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
🇬🇧 United Kingdom
2,092 births recorded 1996–2025 · currently #262 · peaked in 2020 with 186 births (England & Wales + Scotland + Northern Ireland combined)
Source: ONS, National Records of Scotland & NISRA (combined), official birth-registration data
🏴🏴 England & Wales
1,754 births recorded 1996–2021 · currently #333 · peaked in 2020 with 159 births
Source: Office for National Statistics, 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 |
Frequently asked questions about Colby
Is Colby a popular name?
Yes — Colby currently ranks #615 among boys’ names in United States as of 2025, based on official birth records.
Is Colby more common for boys or girls?
Colby is recorded predominantly as a boys’ name in official United States birth data.
When was Colby most popular?
Colby peaked in 2001 in United States, with 3,979 recorded births that year.
Is Colby rising or falling in popularity?
In United States, Colby’s popularity is rising — its rank has improved from #1031 in 1888 to #615 in 2025.
How many babies have been named Colby?
At least 60,247 babies have been recorded with the name Colby across official birth statistics in 4 countries.
Is Colby popular in more than one country?
Yes — Colby appears in official birth records in 4 countries: United States, England & Wales, Scotland, Northern Ireland.
What names are similar in popularity to Colby?
Based on real 2025 ranking data in United States, names ranked closest to Colby include Jakari, Albert, Yahya, Harlan.
Similar names right now
Ranked directly next to Colby in United States, 2025 — a real popularity match, not a subjective list.