Caisen
Masculine
Caisen joins a Cai- front to the -sen ending, and it belongs to the American naming workshop of the last twenty years.
How old is the name Caisen?
Caisen first appears in US birth records in 2004 — 21 years ago. The typical Caisen is a kid of about 6 — this name's wave is very recent. About 500 people named Caisen are estimated to be alive in the US today.
When was the name Caisen most popular?
Caisen peaked in 2025, reaching #2572 nationally. Today it ranks #2572, exactly where it peaked. See the whole 2025 chart.
Lists built from the same records:
Where it comes from
Origin, sound and short forms
Our story of Caisen
Our story of Caisen is a story of a patronymic used as decoration. Jackson, Hudson and Mason are real English surnames formed with -son, and American naming took the ending as free material in the 2000s: Caisen, Kayson, Jaxen, Braysen. The Cai- front is a fashionable sound rather than an inherited element. Caisen appears in the registers in the 2010s and its history begins there.
Meaningnot established
Not established
No documented etymology. It is a modern American coinage on the Cai- or Case- front and the -sen ending, a genuine patronymic detached from its function. Attributions to older languages are not supported. Honest sources record it as a coinage.
Pronouncing Caisen
KAY-sun
Two syllables, stress on the first. All the spellings of the sound are said identically.
Nicknames for Caisen
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
- 2004
- Most boys named
- 202551 — the highest on record
- Peak rank
- #2572reached in 2025
- Change vs 2024
- +27.5%51 in 2025, from 40
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.
Caisen in other languages
The same name elsewhere
- Cason in English — spelling variant
- Kaysen in English — spelling variant
Strongest US states over the last decade: Texas, Louisiana, Florida.
Caisens among us
people named Caisen are estimated to be alive in the US today
About 1 boy in 33,492 born in 2025 was named Caisen
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Caisen
- #2572
- Caisen on the 2025 chart
- #150
- counting every spelling
The SSA counts spellings, not names. Caisen went to 51 boys in 2025, but Kaizen, Kaysen and Kaisen and the rest below are the same name said out loud. Together the 13 spellings went to 2,509, which makes it the 150th most-given boys’ name of the year — 2,422 places above the chart.
and 5 rarer spellings.
About 1 boy in 681 born in 2025 was given one of these spellings — against 1 in 33,492 for Caisen 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 Chilton test
Every popular name lives one long story — a climb, a peak, a slow settling back. Caisen's later chapters haven't been written yet, so we borrowed them: Chilton climbed just as high around 1945, and its whole arc is on record. Line the two peaks up, and Chilton's path sketches the road Caisen is walking now.
Caisen 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 Caisen is headed
Caisen should hold steady through 2030 — the curve is flat, and flat curves are the most predictable kind. Its history is short or jumpy, though, so read this as a sketch rather than a promise.
Low 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.
Caisen beside its neighbors
The names ranked closest to Caisen in 2025, in babies rather than position — the bars are to scale.
US boys given each name in 2025.
The trade-off
- Cai is available as a short form that is a real Welsh name.
- Two clean syllables with no pronunciation risk.
- It belongs to a documented American naming family.
- There is no documented meaning.
- At least four spellings of the sound are in circulation.
- It will be respelled by other people constantly.
Nobody names a baby alone.
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What they receive
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Caisen
Masculine · #2572 in the U.S.
Frequently asked
- How many Caisens are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 500 people named Caisen are estimated to be alive in the US today.
- How do you spell Caisen?
- Caisen is one of 8 recorded spellings. Kaizen is the more common one — 895 births in 2025 against 51 for Caisen.
- How popular is the name Caisen in 2025?
- Caisen ranks #2572 among US boy names in 2025, with 51 babies given the name.
- How rare is the name Caisen?
- About 1 in every 33,492 US boys born in 2025 was named Caisen — 51 in all.
- Will my child share the name Caisen with classmates?
- Caisen will almost certainly be the only one in school.
Ranked beside Caisen
Names sitting at a similar level of popularity right now.
Ripp#2572 · Efraim#2572 · Willem#2572 · Duane#2572 · Nikolaos#2572 · Nicolai#2572 · Zair#2572 · Parth#2572
Looking for what else is popular rather than what resembles Caisen? See the current top 100.
Choosing between Caisen and another name?
See them side by side — full stats, history and a gentle verdict.
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Cast your vote
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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