Keisy
Feminine
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.
Lists built from the same records:
Where it comes from
Origin, sound and short forms
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
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
- 1995
- Most girls named
- 202261 — the highest on record
- Peak rank
- #2792reached in 2022
- Change vs 2024
- +44.0%36 in 2025, from 25
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
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
Is it right for you
What happens to a name after it peaks
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.
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
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.
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.
US girls given each name in 2025.
The trade-off
- 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.
- 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.
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.
Choosing between Keisy and another name?
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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