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2025 data, released 8 May 2026

Caisen

Caisen was the 2574th most popular name for boys in 2025, given to 51 babies. That is its highest rank since records began in 1880. Over the last ten years it has moved up 3,474 places. More babies were named Caisen in the 2020s than in any other decade.

Meaning (as Kayson) Origin not documented

Rank in 2025
#2,574 boys, up 16 places since 2020
Babies in 2025
51boys
Girls and boys
Almost always a boy’s name2021–2025
Peak year
202551 babies
Total since 1880
510babies recorded

What does the name Caisen mean?

Caisen is a spelling of Kayson, pronounced the same way, so it shares Kayson's meaning and origin.

Kayson is a modern American boy's name that Wiktionary describes as a variant of Cason. Cason is an English surname that Wiktionary explains as a corruption of the place name Cawston in Norfolk, and also an Italian surname from a Venetian word for 'house'. The spelling with K follows the fashion for names like Kayden and Kyson. Its meaning as a given name is not documented beyond these links.

How sure is this? Not documented. A modern respelling of Cason; no meaning of its own.

Related names: Cason, Kason, Kasen, Kayden.

Sources for this meaning

Caisen popularity since 1880

0255075100 1900192019401960198020002020
Boys Babies per year, US, from Social Security records. Years with fewer than 5 babies show as zero.
YearRank (boys)Babies (boys)
2025#2,57451
2020#2,59049
2010#6,75012
2000——
1990——
1980——
1970——
1960——
1950——
1940——
1930——
1920——
1910——
1900——
1890——
1880——

How popular is Caisen, counting every spelling?

Caisen is a spelling of Kayson, a name family that ranked #85 for boys in 2025 once every spelling is counted together, compared with #2,574 for Caisen on its own. Together these spellings went to 4,210 boys in 2025.

SpellingBabies 2025Official rankBabies 2021–2025
Kayson1,305#2646,143
Kaison557#5402,981
Kaysen772#4152,802
Cayson296#8351,777
Kaisen311#8001,281
Kaycen235#974888
Caysen143#1,339772
Kaisyn81#1,927448
Caison60#2,307327
Kaeson54#2,501298
Caisen51#2,574203
Kaizyn64#2,219185

Spellings count together when they sound the same in American English and are used for the same sex; nicknames and forms that sound different (such as Theo and Theodore) are kept apart. How we group spellings.

How many kids will share the name Caisen?

51 of the 3,606,400 babies born in the US in 2025 were named Caisen (0.01 per 1,000 births). For a boy named Caisen born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 165 (of 430 pupils) would have a child named Caisen.

Chance of another Caisen in a class of 20under 1 in 50US, born 2025
Most likely inTexasunder 1 in 50 (2024)

Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.

How old are people named Caisen?

About 500 people born in the US named Caisen are alive today, with a median age of 7; half are between 3 and 11. That makes Caisen a young name: most people with it are children.

0–910–1920–2930–3940–4950–5960–6970–7980–8990+
Estimated people alive in the US with the name, by age, mid-2026. The darker bar holds the median age.

Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.

Caisen by state

How common Caisen was among boys born in each state in 2021–2025. In 46 states fewer than five boys a year got the name, too few for SSA to publish, so those states show as zero.

Alaska: fewer than 5 a yearAK–Maine: fewer than 5 a yearME–Wisconsin: fewer than 5 a yearWI–Vermont: fewer than 5 a yearVT–New Hampshire: fewer than 5 a yearNH–Washington: fewer than 5 a yearWA–Idaho: fewer than 5 a yearID–Montana: fewer than 5 a yearMT–North Dakota: fewer than 5 a yearND–Minnesota: fewer than 5 a yearMN–Illinois: fewer than 5 a yearIL–Michigan: fewer than 5 a yearMI–New York: fewer than 5 a yearNY–Massachusetts: fewer than 5 a yearMA–Oregon: fewer than 5 a yearOR–Nevada: fewer than 5 a yearNV–Wyoming: fewer than 5 a yearWY–South Dakota: fewer than 5 a yearSD–Iowa: fewer than 5 a yearIA–Indiana: fewer than 5 a yearIN–Ohio: fewer than 5 a yearOH–Pennsylvania: fewer than 5 a yearPA–New Jersey: fewer than 5 a yearNJ–Connecticut: fewer than 5 a yearCT–Rhode Island: fewer than 5 a yearRI–California: fewer than 5 a yearCA–Utah: fewer than 5 a yearUT–Colorado: fewer than 5 a yearCO–Nebraska: fewer than 5 a yearNE–Missouri: fewer than 5 a yearMO–Kentucky: fewer than 5 a yearKY–West Virginia: fewer than 5 a yearWV–Virginia: fewer than 5 a yearVA–Maryland: fewer than 5 a yearMD–Delaware: fewer than 5 a yearDE–Arizona: fewer than 5 a yearAZ–New Mexico: fewer than 5 a yearNM–Kansas: fewer than 5 a yearKS–Arkansas: fewer than 5 a yearAR–Tennessee: fewer than 5 a yearTN–North Carolina: fewer than 5 a yearNC–South Carolina: fewer than 5 a yearSC–District of Columbia: fewer than 5 a yearDC–Oklahoma: fewer than 5 a yearOK–Louisiana: 0.10 per 1,000 babiesLA0.10Mississippi: 0.09 per 1,000 babiesMS0.09Alabama: fewer than 5 a yearAL–Georgia: 0.02 per 1,000 babiesGA0.02Hawaii: fewer than 5 a yearHI–Texas: 0.02 per 1,000 babiesTX0.02Florida: 0.01 per 1,000 babiesFL0.01
Babies per 1,000 of the same sex, Caisen, boys, 2021–2025. Darker means more common.

Names with a similar history

These names rose and fell in step with Caisen: their share of US boys followed the most similar curve since 1880. If you like Caisen, they share its era and feel.

Questions about the name Caisen

How popular is the name Caisen?

Caisen was the 2574th most popular name for boys in 2025, given to 51 babies. That is its highest rank since records began in 1880. Over the last ten years it has moved up 3,474 places. More babies were named Caisen in the 2020s than in any other decade.

Is Caisen a boy or girl name?

In 2021–2025, almost always a boy’s name given the name Caisen in the US.

Where is Caisen most popular?

In 2021–2025, Caisen was most common in Louisiana (0.10 per 1,000 boys), followed by Mississippi and Texas.