Cailen
#9,867 in 2025UnisexBoys' nameGirls' nameMeaning not yet documented
Cailen has been given to 448 babies in the U.S. since 1987. In 2025 it ranked #9,867 of 13,926 boys’ names in use. Its peak year was 2007, with 17 recorded. It's used for both sexes: 56% boys, 44% girls all-time.
Babies named Cailen, 2025
1 in 474,000
Cailen over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
Girls or boys — Cailen over time
In 2025, Cailen went to 0% girls and 100% boys.
A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.
How common is Cailen?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 474,000
- 7 of 3,315,165 births
- Among boys only
- 1 in 244,000
- <0.01% of boys
- Rank, 2025
- #9,867
- of 13,926 boys’ names in use
- Coin-flip room size
- 328,272 kids
- Even odds of a second one
Where Cailen sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 328,272 children born in 2025 and it's an even bet that one of them is another Cailen. In a class of 30 the chance is Under 1%.
When Cailens were born
Half of everyone ever recorded as Cailen was born before 2009 — so the typical Cailen is around 16 today.
- Biggest decade
- 2000s
- 39.0% of all use
- Born in the last 25 years
- 81.7%
- A modern name
- Recorded since 1950
- 251
- People you could plausibly meet
2000s — 39.0% of all recorded uses (98).
Is Cailen rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- —
- Not ranked then
- Rank vs 5 years ago
- +2,468
- Places climbed
- Rank vs 10 years ago
- +2,493
- Places climbed
- Births vs 10 years ago
- 1.40×
- More babies than then
- Share of its own peak
- 41.2%
- Peak was 2007 (17)
- Years since peak
- 18
- Years
- Year-to-year steadiness
- Volatile
- 30.4% average annual change
Spellings of Cailen
Cailen is not the most common spelling — Caleb is, with 22.1% against Cailen's 0.02%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Cailen around the world
Where Cailen ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- England & Wales1996–2023#4,108in 2023
- Scotland2011–2019#516in 2019
- Canada2005–2009#2,692in 2009
- South Australia1994–2001#581in 2001
Popularity data from Office for National Statistics, National Records of Scotland, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS data under Open Government Licence v3.0. StatCan data under Statistics Canada Open Licence. CBS SA data under CC BY 4.0.
Cailen by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Cailen
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Cailen
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.