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2025 data, released 8 May 2026

Kaisyn

Kaisyn was the 1927th most popular name for boys in 2025, given to 81 babies. Its best year was 2024, when it ranked 1604th with 107 babies. Over the last ten years it has moved up 1,814 places. More babies were named Kaisyn in the 2020s than in any other decade.

Meaning (as Kayson) Origin not documented

Rank in 2025
#1,927 boys, up 30 places since 2020
Babies in 2025
81boys
Girls and boys
14% girls, 86% boys2021–2025
Peak year
2024107 babies
Total since 1880
1,087babies recorded

What does the name Kaisyn mean?

Kaisyn 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

Kaisyn popularity since 1880

050100150200 1900192019401960198020002020
GirlsBoys Babies per year, US, from Social Security records. Years with fewer than 5 babies show as zero.
YearRank (girls)Rank (boys)Babies (girls)Babies (boys)
2025#10,482#1,927981
2020#6,192#1,9571974
2010#12,846#5,888815
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How popular is Kaisyn, counting every spelling?

Kaisyn is a spelling of Kayson, a name family that ranked #85 for boys in 2025 once every spelling is counted together, compared with #1,927 for Kaisyn 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 Kaisyn?

81 of the 3,606,400 babies born in the US in 2025 were named Kaisyn (0.02 per 1,000 births). For a boy named Kaisyn 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 103 (of 430 pupils) would have a child named Kaisyn.

Chance of another Kaisyn in a class of 20under 1 in 50US, born 2025
Most likely inNorth Carolinaunder 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 Kaisyn?

About 800 people born in the US named Kaisyn are alive today, with a median age of 5; half are between 3 and 9. That makes Kaisyn 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.

Kaisyn by state

How common Kaisyn was among boys born in each state in 2021–2025. It is notably more common than nationally in North Carolina (1.7×), Georgia (1.5×). In 35 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: 0.03 per 1,000 babiesIL0.03Michigan: 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: 0.03 per 1,000 babiesIN0.03Ohio: 0.07 per 1,000 babiesOH0.07Pennsylvania: 0.04 per 1,000 babiesPA0.04New 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: 0.04 per 1,000 babiesMO0.04Kentucky: 0.05 per 1,000 babiesKY0.05West 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: 0.07 per 1,000 babiesKS0.07Arkansas: fewer than 5 a yearAR–Tennessee: 0.03 per 1,000 babiesTN0.03North Carolina: 0.09 per 1,000 babiesNC0.09South Carolina: 0.05 per 1,000 babiesSC0.05District of Columbia: fewer than 5 a yearDC–Oklahoma: fewer than 5 a yearOK–Louisiana: 0.17 per 1,000 babiesLA0.17Mississippi: 0.09 per 1,000 babiesMS0.09Alabama: 0.05 per 1,000 babiesAL0.05Georgia: 0.08 per 1,000 babiesGA0.08Hawaii: fewer than 5 a yearHI–Texas: 0.05 per 1,000 babiesTX0.05Florida: 0.03 per 1,000 babiesFL0.03
Babies per 1,000 of the same sex, Kaisyn, boys, 2021–2025. Darker means more common.

Names with a similar history

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

Questions about the name Kaisyn

How popular is the name Kaisyn?

Kaisyn was the 1927th most popular name for boys in 2025, given to 81 babies. Its best year was 2024, when it ranked 1604th with 107 babies. Over the last ten years it has moved up 1,814 places. More babies were named Kaisyn in the 2020s than in any other decade.

Is Kaisyn a boy or girl name?

In 2021–2025, 14% girls, 86% boys given the name Kaisyn in the US.

Where is Kaisyn most popular?

In 2021–2025, Kaisyn was most common in Louisiana (0.17 per 1,000 boys), followed by North Carolina and Mississippi.