Kaisyn
Masculine
Kaisyn is given to both — 855 boys and 232 girls since 1880. See other names given to both
Kaisyn joins a Kai- front to the -syn ending, and it belongs to the very large family of spellings that Kason and Cason generated.
How old is the name Kaisyn?
Kaisyn first appears in US birth records in 2010 — 15 years ago. The typical Kaisyn is a kid of about 4 — this name's wave is very recent. About 800 people named Kaisyn are estimated to be alive in the US today.
When was the name Kaisyn most popular?
Kaisyn peaked in 2024, reaching #1599 nationally. Today it ranks #1919, 320 places below that high. See the whole 2024 chart.
Kaisyn appears on this list:
Where it comes from
Origin, sound and short forms
Our story of Kaisyn
Our story of Kaisyn is a story of a sound with too many faces. Kason, Cason, Kaysen, Kacen, Kasyn, Kaisyn — six spellings of the same two syllables, all in the American registers within a decade. What separates them is only what each family chose to put on paper. Kaisyn takes the Kai front and the -syn back, both of them modern signals. It appears in the 2010s in small numbers, and there is no older word behind any of them.
Meaningnot established
Not established
No established etymology. The Kai- front circulates from Kai and Kayden; the -syn ending is the English patronymic used as a sound rather than a claim about anyone's father. It is a modern American coinage and honest sources do not claim more.
Pronouncing Kaisyn
KAY-sun
Two syllables, stress on the first. All the spellings of the sound are said identically.
Nicknames for Kaisyn
Moderate
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
- 2010
- Most boys named
- 2024107 — the highest on record
- Peak rank
- #1599reached in 2024
- Change vs 2024
- −24.3%81 in 2025, from 107
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.
Kaisyn in other languages
The same name elsewhere
- Kason in English — spelling variant
- Kaysen in English — spelling variant
- Cason in English — spelling variant
Strongest US states over the last decade: Texas, Louisiana, Ohio.
Kaisyns among us
people named Kaisyn are estimated to be alive in the US today
About 1 boy in 21,087 born in 2025 was named Kaisyn
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Kaisyn
- #1919
- Kaisyn on the 2025 chart
- #709
- counting every spelling
The SSA counts spellings, not names. Kaisyn went to 81 boys in 2025, but Kaizyn, Kaysin and Kaysyn and the rest below are the same name said out loud. Together the 8 spellings went to 221, which makes it the 709th most-given boys’ name of the year — 1,210 places above the chart.
- Kaisyn81
- Kaizyn64
- Kaysin24
- Kaysyn21
- Kaicyn12
- Caisyn7
- Caizyn7
- Kaycin5
About 1 boy in 7,729 born in 2025 was given one of these spellings — against 1 in 21,087 for Kaisyn 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 Deaundre test
Every popular name lives one long story — a climb, a peak, a slow settling back. Kaisyn's later chapters haven't been written yet, so we borrowed them: Deaundre climbed just as high around 1997, and its whole arc is on record. Line the two peaks up, and Deaundre's path sketches the road Kaisyn is walking now.
Kaisyn 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
Where Kaisyn is headed
Kaisyn looks set to keep climbing gently, with roughly 26% more babies a year by 2030 if the current curve holds.
Medium confidence — fitted on official counts through 2025.
A damped-trend projection of the official birth data — a sketch of momentum, not a promise. Every name's forecast, ranked.
Kaisyn beside its neighbors
The names ranked closest to Kaisyn in 2025, in babies rather than position — the bars are to scale.
US boys given each name in 2025.
The trade-off
- Kai is available as a short form that is fully current in its own right.
- Two clean syllables with no pronunciation risk.
- It belongs to a documented and highly productive naming pattern.
- There is no inherited meaning, and honest sources say so.
- At least six spellings of the sound are in circulation.
- It will need spelling out every single time.
Nobody names a baby alone.
Put Kaisyn to the vote.
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What they receive
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Kaisyn
Masculine · #1919 in the U.S.
Frequently asked
- How many Kaisyns are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 800 people named Kaisyn are estimated to be alive in the US today.
- How do you spell Kaisyn?
- Kaisyn is the most-used spelling in US records — 81 of the 221 babies given the name in 2025. The others recorded are Kaizyn, Kaysin, Kaysyn, Kaicyn, Caisyn, Caizyn and Kaycin.
- How popular is the name Kaisyn in 2025?
- Kaisyn ranks #1919 among US boy names in 2025, with 81 babies given the name.
- How rare is the name Kaisyn?
- About 1 in every 21,087 US boys born in 2025 was named Kaisyn — 81 in all.
- Will my child share the name Kaisyn with classmates?
- Kaisyn will almost certainly be the only one in school.
Ranked beside Kaisyn
Names sitting at a similar level of popularity right now.
Karsen#1919 · Lou#1919 · Asad#1919 · Elwood#1919 · Mikel#1919 · Azari#1919 · Jawad#1919 · Hendrick#1919
Looking for what else is popular rather than what resembles Kaisyn? See the current top 100.
Choosing between Kaisyn and another name?
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Which one would you pick?
Your gut first, the numbers after — the split shows once you pick.
US figures from the Social Security Administration. 1880–2025. Data & methodology
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