Kaysen
Masculine
Kaysen is given to both — 6,640 boys and 435 girls since 1880. See other names given to both
Kaysen is one of the newer American names, born in the country's long fondness for the -son ending — the same ending carried by Jackson, Mason and Grayson — fitted onto the Kay- opening that Kayden and Kayla share. It reads on sight for any English speaker and lands in two clean beats. Its whole recorded life has happened within living memory, and it is still gathering rather than fading.
How old is the name Kaysen?
Kaysen first appears in US birth records in 1998 — 27 years ago. The typical Kaysen is a kid of about 6 — this name's wave is very recent. About 6,600 people named Kaysen are estimated to be alive in the US today.
When was the name Kaysen most popular?
Kaysen peaked in 2025, reaching #415 nationally. Today it ranks #415, exactly where it peaked. See the whole 2025 chart.
Where it comes from
Origin, sound and short forms
Our story of Kaysen
Think of the two halves of this name arriving from different directions. The -sen ending has been traveling for centuries in surnames — Hansen, Jansen, Jackson — where it once marked a line of descent. The Kay- opening is the sound American parents have been reaching for again and again in the last few decades, in Kayden and Kayla and Kason. Somewhere in the ordinary business of naming children, the two met, and a name that had never existed before was suddenly being written on birth certificates in Texas, Florida and Ohio. Every Kaysen alive is part of that first stretch of the story.
Meaningnot established
Not established
No etymology has been established for Kaysen. What is documented is the company it keeps: it appears in American records alongside Kayden, Kason, Cason and Kayson, and it ends in the -sen/-son element that in older surnames meant "son of". Whether any particular parent had that in mind, or simply liked the sound, is not something the record preserves.
Pronouncing Kaysen
KAY-sen
Two syllables, stress on the first. The ending is the same sound as in Hansen or Jansen. Kayson, Kason and Cason are all said the same way.
Nicknames for Kaysen
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
- 1998
- Most boys named
- 2025772 — the highest on record
- Peak rank
- #415reached in 2025
- Change vs 2024
- +60.8%772 in 2025, from 480
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.
Kaysen in other languages
Strongest US states over the last decade: Texas, Florida, Ohio.
Kaysens among us
people named Kaysen are estimated to be alive in the US today
About 1 boy in 2,213 born in 2025 was named Kaysen
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Kaysen
- #415
- Kaysen on the 2025 chart
- #150
- counting every spelling
The SSA counts spellings, not names. Kaysen went to 772 boys in 2025, but Kaizen, Kaisen and Kaycen 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 — 265 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 2,213 for Kaysen 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 Jaquan test
Every popular name lives one long story — a climb, a peak, a slow settling back. Kaysen's later chapters haven't been written yet, so we borrowed them: Jaquan climbed just as high around 1999, and its whole arc is on record. Line the two peaks up, and Jaquan's path sketches the road Kaysen is walking now.
Kaysen is climbing fast right now. Steep climbs tend to come with steep descents — the quicker a name arrives, the more firmly it belongs to its moment.
A scored estimate from 146 years of naming cycles — not a prophecy. Great names outlive statistics. How this is scored
Where Kaysen is headed
Kaysen should hold steady through 2030 — the curve is flat, and flat curves are the most predictable kind.
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.
Kaysen beside its neighbors
The names ranked closest to Kaysen in 2025, in babies rather than position — the bars are to scale.
US boys given each name in 2025.
The trade-off
- Reads correctly on first sight for English speakers — no pronunciation guessing, no correcting teachers.
- Two short syllables, easy for a small child to say and to write.
- Sits inside a familiar sound family with Mason, Jackson and Kayden, so it is never strange to an American ear.
- Uncommon enough that a Kaysen is unlikely to share the name with anyone in his class.
- The spelling has close rivals — Kayson, Kason, Cason, Casen — all pronounced identically. Expect to spell it aloud fairly often, and expect the occasional form to come back with a C.
- Its entire record belongs to one recent stretch of time, so the name will read clearly as belonging to this generation. That can be a pleasure or a limitation, depending on how you feel about a name that dates its bearer.
- Because the name is young, it has no long-settled nickname the way Charles has Charlie. Whatever the family lands on is likely to be the family's own invention.
Nobody names a baby alone.
Put Kaysen to the vote.
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What they receive
Someone added a name to your list
Kaysen
Masculine · #415 in the U.S.
Frequently asked
- How many Kaysens are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 6,600 people named Kaysen are estimated to be alive in the US today.
- How do you spell Kaysen?
- Kaysen is one of 8 recorded spellings. Kaizen is the more common one — 895 births in 2025 against 772 for Kaysen.
- How popular is the name Kaysen in 2025?
- Kaysen ranks #415 among US boy names in 2025, with 772 babies given the name.
- How rare is the name Kaysen?
- About 1 in every 2,213 US boys born in 2025 was named Kaysen — 772 in all.
- Will my child share the name Kaysen with classmates?
- Kaysen will almost certainly be the only one in school.
Ranked beside Kaysen
Names sitting at a similar level of popularity right now.
Cayden#414 · Rylan#416 · Hank#413 · Reed#417 · Conrad#417 · Killian#417 · Francis#420 · Eduardo#410
Looking for what else is popular rather than what resembles Kaysen? See the current top 100.
Choosing between Kaysen and another name?
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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