Kaydin
Masculine
Kaydin is given to both — 1,307 boys and 545 girls since 1880. See Kaydin as a girl nameSee other names given to both
Kaydin is one of the spellings of Kayden, a two-syllable name given mostly to boys and to a real minority of girls. It is bright and quick, a name of its generation.
How old is the name Kaydin?
Kaydin first appears in US birth records in 1999 — 26 years ago. The typical Kaydin alive today was born around 2011, making them about 14 years old. About 1,300 people named Kaydin are estimated to be alive in the US today.
When was the name Kaydin most popular?
Kaydin peaked in 2010, reaching #1565 nationally. Today it ranks #4396, 2,831 places below that high. See the whole 2010 chart.
Lists built from the same records:
Where it comes from
Origin, sound and short forms
Our story of Kaydin
Kayden rose with Aiden, Jaden and Brayden in a wave of names built on the same two-beat sound, and each was spelled many ways. Kaydin ends with the -in of Robin, so the second syllable reads short and light. It is a name of its moment, easy to call and quick to write, and it serves boys and girls alike.
Meaningnot established
Not established
No source records a meaning for Kaydin. It belongs with Kayden and Caden, modern names with no settled source, and its -in ending adds nothing to the sound.
Pronouncing Kaydin
KAY-din
Two syllables, stressed on the first.
Nicknames for Kaydin
Limited
What the data says
146 years of official birth records
The long climb, and where it stands now
The same years in position rather than babies
- First recorded
- 1999
- Most boys named
- 2010101 — the highest on record
- Peak rank
- #1565reached in 2010
- Change vs 2024
- −4.2%23 in 2025, from 24
Rank is a position, a count is a headcount, and they move independently — a name can hold its rank while the number of babies behind it falls. Source: U.S. Social Security Administration.
Kaydin in other languages
Strongest US states over the last decade: California, Georgia.
Kaydins among us
people named Kaydin are estimated to be alive in the US today
About 1 boy in 74,264 born in 2025 was named Kaydin
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Kaydin
- #4396
- Kaydin on the 2025 chart
- #806
- counting every spelling
The SSA counts spellings, not names. Kaydin went to 23 boys in 2025, but Kaidyn, Caidyn and Kaydyn are the same name said out loud. Together the 4 spellings went to 122, which makes it the 806th most-given boys’ name of the year — 3,590 places above the chart.
About 1 boy in 14,001 born in 2025 was given one of these spellings — against 1 in 74,264 for Kaydin itself.
Spellings are grouped by a fixed rule that folds interchangeable English spellings of one sound (ck/k, ph/f, x/ks, a non-initial y for i) and keeps vowels apart, so Sean and Shawn stay separate names. It errs towards splitting: a family here is never larger than the truth. SSA national data, 2025. Method
Is it right for you
What happens to a name after it peaks
The Zach test
Every popular name lives one long story — a climb, a peak, a slow settling back. Kaydin's later chapters haven't been written yet, so we borrowed them: Zach climbed just as high around 1972, and its whole arc is on record. Line the two peaks up, and Zach's path sketches the road Kaydin is walking now.
Kaydin sits in the calm middle of the cycle — neither chasing a wave nor sliding off one. Middle-of-the-cycle names age slowly and predictably.
A scored estimate from 146 years of naming cycles — not a prophecy. Great names outlive statistics. How this is scored
Kaydin beside its neighbors
The names ranked closest to Kaydin in 2025, in babies rather than position — the bars are to scale.
US boys given each name in 2025.
The trade-off
- It is easy to say and sounds familiar.
- It works for a boy or a girl.
- It is one of many spellings of one sound, so it will be misspelled often.
- Most children given it are boys; a girl named Kaydin may be taken for a boy on paper.
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Kaydin
Masculine · #4396 in the U.S.
Frequently asked
- How many Kaydins are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 1,300 people named Kaydin are estimated to be alive in the US today.
- How do you spell Kaydin?
- Kaydin is one of 4 recorded spellings. Kaidyn is the more common one — 67 births in 2025 against 23 for Kaydin.
- How popular is the name Kaydin in 2025?
- Kaydin ranks #4396 among US boy names in 2025, with 23 babies given the name.
- How rare is the name Kaydin?
- About 1 in every 74,264 US boys born in 2025 was named Kaydin — 23 in all.
- Will my child share the name Kaydin with classmates?
- Kaydin will almost certainly be the only one in school.
Ranked beside Kaydin
Names sitting at a similar level of popularity right now.
Odell#4396 · Corwin#4396 · Tennyson#4396 · Marques#4396 · Manu#4396 · Omid#4396 · Zackariah#4396 · Burton#4396
Looking for what else is popular rather than what resembles Kaydin? See the current top 100.
Choosing between Kaydin and another name?
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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