Colin Boy
How popular is Colin?
#343 boy name in 2025
950 baby boys were named Colin in the US in 2025, making it the 343rd most popular boy name.
Colin popularity over time
Boys Girls
| Rank in 2025 | #343 for boys (▼ 8 from 2024) |
|---|---|
| Babies in 2025 | 950 boys |
| 10-year trend | Falling fast (-61% babies vs 2015) |
| Earlier ranks | #172 in 2015, #287 in 2020 |
| Peak year | 2004 (5,122 boys) |
| Highest rank | #85 in 2004 |
| First recorded | 1880 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 0.7% in a class of 25 kids born in 2025 |
Colin counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Colin family of names ranked #234 for boys in 2025 (#229 the year before), with 1,628 babies in all.
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Colin is most popular
Babies named Colin per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- Massachusetts: 2.6 per 1,000 (359 boys)
- New Hampshire: 2.5 per 1,000 (55 boys)
- District of Columbia: 2.3 per 1,000 (34 boys)
- Connecticut: 2.1 per 1,000 (140 boys)
- Rhode Island: 1.7 per 1,000 (27 boys)
Colin by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 46 | #758 |
| 1890s | 30 | #786 |
| 1900s | 34 | #874 |
| 1910s | 267 | #984 |
| 1920s | 412 | #938 |
| 1930s | 491 | #771 |
| 1940s | 1,919 | #323 |
| 1950s | 2,459 | #443 |
| 1960s | 4,162 | #320 |
| 1970s | 7,484 | #207 |
| 1980s | 17,672 | #126 |
| 1990s | 28,258 | #119 |
| 2000s | 39,129 | #85 |
| 2010s | 24,715 | #111 |
| 2020s | 6,628 | #269 |
Boy names about as popular as Colin
Questions
- Is Colin a boy or girl name?
- Colin is mostly a boy name. Over the last 10 years, 100% of babies named Colin were boys.
- How popular is the name Colin?
- 950 baby boys were named Colin in the US in 2025, making it the 343rd most popular boy name.
- When was Colin most popular?
- Colin peaked in 2004, when 5,122 boys were given the name. Its highest rank was #85 in 2004.
- How many people are named Colin?
- 134,151 babies have been named Colin in the US since 1880. We estimate about 127,286 of them are alive in 2026, with a median age of 25.
- Where is Colin most popular?
- From 2021 to 2025, Colin was most common in Massachusetts, at 2.6 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.