Kaydn
UnisexBoys' nameGirls' nameMeaning not yet documented
Kaydn has been given to 306 babies in the U.S. since 2000. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 2009, with 29 recorded. It's used for both sexes: 81% boys, 19% girls all-time.
Babies named Kaydn, 2024
1 in 669,000
Kaydn 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 — Kaydn over time
In 2024, Kaydn 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 Kaydn?
Kaydn had fewer than 5 recorded uses in 2025, so these figures use 2024, the last year it was published.
- Among all babies, 2024
- 1 in 669,000
- 5 of 3,342,801 births
- Among boys only
- 1 in 345,000
- <0.01% of boys
- Rank, 2024
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 463,412 kids
- Even odds of a second one
Where Kaydn sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2024 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 463,412 children born in 2024 and it's an even bet that one of them is another Kaydn. In a class of 30 the chance is Under 1%.
When Kaydns were born
Half of everyone ever recorded as Kaydn was born before 2010 — so the typical Kaydn is around 15 today.
- Biggest decade
- 2000s
- 46.6% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 247
- People you could plausibly meet
2000s — 46.6% of all recorded uses (115).
Is Kaydn 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
- New entry
- Not ranked then
- Rank vs 10 years ago
- —
- Not ranked then
- Births vs 10 years ago
- —
- Not published both years
- Share of its own peak
- 0%
- Peak was 2009 (29)
- Years since peak
- 16
- Years
- Year-to-year steadiness
- Volatile
- 28.1% average annual change
Spellings of Kaydn
Kaydn is not the most common spelling — Jayden is, with 25.1% against Kaydn'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.
Kaydn around the world
Where Kaydn 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 & Wales2004–2016#3,478in 2016
- Scotland2009–2009#549in 2009
- South Australia2009–2009#708in 2009
Popularity data from Office for National Statistics, National Records of Scotland and Consumer and Business Services (South Australia). ONS, NRS data under Open Government Licence v3.0. CBS SA data under CC BY 4.0.
Kaydn by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Kaydn
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Kaydn
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.