Kaitlyn Girl
How popular is Kaitlyn?
#799 girl name in 2025
340 baby girls were named Kaitlyn in the US in 2025, making it the 799th most popular girl name.
Kaitlyn popularity over time
Boys Girls
| Rank in 2025 | #799 for girls (▼ 152 from 2024) |
|---|---|
| Babies in 2025 | 340 girls |
| 10-year trend | Falling fast (-80% babies vs 2015) |
| Earlier ranks | #197 in 2015, #488 in 2020 |
| Peak year | 2000 (8,759 girls) |
| Highest rank | #30 in 2000 |
| First recorded | 1971 |
| Boys vs girls (last 10 years) | 0% boys, 100% girls |
| Chance a classmate shares it | 0.2% in a class of 25 kids born in 2025 |
Kaitlyn counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Kaitlyn family of names ranked #361 for girls in 2025 (#294 the year before), with 882 babies in all.
| Spelling | Girls in 2025 | Share |
|---|---|---|
| Kaitlyn | 340 | 39% |
| Katelyn | 225 | 26% |
| Caitlyn | 71 | 8% |
| Katelynn | 63 | 7% |
| Caitlin | 78 | 9% |
| Kaitlynn | 41 | 5% |
| Kaitlin | 35 | 4% |
| Caitlynn | 11 | 1% |
| Katlyn | 12 | 1% |
| Kaytlyn | 6 | 1% |
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 Kaitlyn is most popular
Babies named Kaitlyn per 1,000 girls born in each state, 2021 to 2025. Darker means more common.
- Mississippi: 1.0 per 1,000 (49 girls)
- New Jersey: 0.5 per 1,000 (91 girls)
- Maryland: 0.5 per 1,000 (53 girls)
- Indiana: 0.5 per 1,000 (64 girls)
- New York: 0.4 per 1,000 (169 girls)
Kaitlyn by decade
| Decade | Baby girls | Best rank |
|---|---|---|
| 1970s | 76 | #2,931 |
| 1980s | 10,890 | #95 |
| 1990s | 67,567 | #33 |
| 2000s | 66,909 | #30 |
| 2010s | 18,357 | #89 |
| 2020s | 2,890 | #488 |
Girl names about as popular as Kaitlyn
Questions
- Is Kaitlyn a boy or girl name?
- Kaitlyn is mostly a girl name. Over the last 10 years, 100% of babies named Kaitlyn were girls.
- How popular is the name Kaitlyn?
- 340 baby girls were named Kaitlyn in the US in 2025, making it the 799th most popular girl name.
- When was Kaitlyn most popular?
- Kaitlyn peaked in 2000, when 8,759 girls were given the name. Its highest rank was #30 in 2000.
- How many people are named Kaitlyn?
- 166,921 babies have been named Kaitlyn in the US since 1880. We estimate about 164,800 of them are alive in 2026, with a median age of 26.
- Where is Kaitlyn most popular?
- From 2021 to 2025, Kaitlyn was most common in Mississippi, at 1.0 of every 1,000 girls 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.