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Keisy

Feminine

1995high 2022
#3975 in the U.S.given to only a few children a year
rare36 girls in 2025

Keisy is a Spanish-language spelling of an English sound, and the likeliest parent is Casey — an Irish surname meaning vigilant or watchful.

How old is the name Keisy?

Keisy first appears in US birth records in 1995 — 30 years ago. The typical Keisy is a kid of about 9 — this name's wave is very recent. About 800 people named Keisy are estimated to be alive in the US today.

When was the name Keisy most popular?

Keisy peaked in 2022, reaching #2792 nationally. Today it ranks #3975, 1,183 places below that high. See the whole 2022 chart.

I

Where it comes from

Our story of Keisy

Ours, offered as ours. Latin American naming has for decades taken English-language names and respelled them as Spanish would hear them — Keisy for Casey, Yenifer for Jennifer, Maikol for Michael, Estefani for Stephanie. That is not a mistake; it is a phonetic system doing exactly what it should. The result is a set of names that look invented to English readers and are simply English names written correctly for a different set of spelling rules.

Meaningnot established

Not established

No source is established for this spelling. Irish Ó Cathasaigh, giving Casey, is built on a word read as vigilant. Keisha is another possible parent and has no documented meaning. Neither is confirmed for the Spanish-language form.

Pronouncing Keisy

KAY-see

Two syllables, first stressed. The ei is the Spanish way of writing the English ay sound.

Nicknames for Keisy

Moderate

KeiThe front clip
SisiA doubled household form used affectionately
II

What the data says

The long climb, and where it stands now

GIRLS NAMED · 1995–202561310613619952025

US babies named Keisy per year from 1995 to 2025
AVERAGE RANK BY DECADE#1#10#100#1000#27921990s2020s

The same years in position rather than babies

First recorded
1995
Most girls named
202261 — the highest on record
Peak rank
#2792reached in 2022
Change vs 2024
+44.0%36 in 2025, from 25
Keisy sits in the rare tail. Its best year on record was 2022, with 61 girls. Today it is given to few enough children that it does not enter the ranked charts at all.

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.

Keisy in other languages

The same name elsewhere

  • Casey in English — related form
  • Keisi in Spanish — spelling variant

Strongest US states over the last decade: Texas, New York, California.

Keisys among us

800

people named Keisy are estimated to be alive in the US today

About 1 girl in 44,646 born in 2025 was named Keisy

Estimated from SSA birth records and published actuarial life tables. Method

Spellings of Keisy

#3975
Keisy on the 2025 chart
#886
counting every spelling

The SSA counts spellings, not names. Keisy went to 36 girls in 2025, but Keysi and Keisi are the same name said out loud. Together the 3 spellings went to 74, which makes it the 886th most-given girls’ name of the year — 3,089 places above the chart.

  • Keisy36
  • Keysi30
  • Keisi8

About 1 girl in 21,720 born in 2025 was given one of these spellings — against 1 in 44,646 for Keisy 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

III

Is it right for you

The Rusty test

Every popular name lives one long story — a climb, a peak, a slow settling back. Keisy's later chapters haven't been written yet, so we borrowed them: Rusty climbed just as high around 1976, and its whole arc is on record. Line the two peaks up, and Rusty's path sketches the road Keisy is walking now.

40%chance Keisy will feel “very 2020s” by 2040
Keisy, aligned on its peakRusty· peak 1976not yet written
#1#10#100#1000peak-40 yrs+50 yrsRusty · #11122Keisy today
Keisy today is about where Rusty stood in 1979 — 3 years past a #2792-sized peak. By 1994, Rusty had settled around #11250.
Ages quietlysteadyDates fast

Keisy 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 Keisy is headed

19952030

US babies named Keisy per year, 1995 to 2025, with a projection to 2030

Keisy is easing off slowly — about 19% fewer babies a year by 2030 if the trend continues. Its history is short or jumpy, though, so read this as a sketch rather than a promise.

Cooling-19% by 2030projected around #4,624 in 2030

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.

Keisy beside its neighbors

The names ranked closest to Keisy in 2025, in babies rather than position — the bars are to scale.

Keisythis name36#3975Rubie36#3975Bradley36#3975Jodi36#3975An36#3975

US girls given each name in 2025.

The trade-off

Practical strengths
  • Five letters and two syllables, quick to write.
  • Spanish speakers read it correctly at first sight, which is its whole design.
  • Read correctly by English speakers once they have seen it once.
What to consider
  • Casey is the English spelling and will be offered as a correction constantly.
  • Keisy, Keisi and Keysi are all in use and none is dominant.
  • There is no documented meaning for this spelling.

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Keisy

Feminine · #3975 in the U.S.

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Frequently asked

How many Keisys 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 Keisy are estimated to be alive in the US today.
How do you spell Keisy?
Keisy is the most-used spelling in US records — 36 of the 74 babies given the name in 2025. The others recorded are Keysi and Keisi.
How popular is the name Keisy in 2025?
Keisy ranks #3975 among US girl names in 2025, with 36 babies given the name.
How rare is the name Keisy?
About 1 in every 44,646 US girls born in 2025 was named Keisy — 36 in all.
Will my child share the name Keisy with classmates?
Keisy will almost certainly be the only one in school.

Ranked beside Keisy

Names sitting at a similar level of popularity right now.

Rubie#3975 · Bradley#3975 · Jodi#3975 · An#3975 · Ilianna#3975 · Saja#3975 · Ansleigh#3975 · Dorcas#3975

Looking for what else is popular rather than what resembles Keisy? See the current top 100.

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US figures from the Social Security Administration. 1880–2025. Data & methodology

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