Casi
Feminine
Casi is the shortest written form of a name that America has spelled a dozen ways, and the name itself is best known from a poem about a man who fails. Casey at the Bat is the most recited piece of verse in American English, and its author spent years insisting it was nothing much and refusing to be associated with it.
How old is the name Casi?
Casi first appears in US birth records in 1962 — 63 years ago. The typical Casi alive today was born around 1987, making them about 38 years old. About 1,100 people named Casi are estimated to be alive in the US today.
When was the name Casi most popular?
Casi peaked in 1986, reaching #2025 nationally. See the whole 1986 chart.
Where it comes from
From an Irish surname carried to America to Casi
The story of Casi
Ernest Thayer wrote the poem for a San Francisco newspaper in 1888 and signed it with a nickname from his college days. It would have vanished like everything else on that page except that a stage actor picked it up, recited it at a baseball benefit, and then went on reciting it for the rest of his career — by his own count something like ten thousand times, until it had buried everything else he ever did. Thayer, a Harvard graduate who had gone into his family's mills, was embarrassed by the whole business, declined to claim the poem for years, and never made a penny out of the most famous American poem of its century.
Meaningnot established
Not established
The sound comes from an Irish surname, and the spellings that carry it in America — Casey, Kasey, Casi, Kacey — have separated far enough from that surname that most families using them have no connection to it at all. This particular spelling is a written choice with nothing behind it: it does not indicate a different origin, a different pronunciation or a different longer name. It indicates that somebody, at some point, wrote the name with four letters.
How the name formed
- an Irish surname carried to America
- Casey established as an American first name
- a newspaper poem makes it a byword in 1888
- the spellings multiply through the twentieth century
- Casi appears among them in the 1960s
Related forms: Casey · Kasey · Cathasaigh
Pronouncing Casi
KAY-see
Two syllables, stress at the front, identical to Casey. The single i at the end says the same thing that ey, ie and y say in the other spellings.
Nicknames for Casi
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
- 1962
- Most girls named
- 198956 — the highest on record
- Peak rank
- #2025reached in 1986
- Change vs 2014
- −16.7%5 in 2022, from 6
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.
Casi in other languages
The same name elsewhere
- Casey in English — spelling variant
- Kasey in English — spelling variant
- Cathasaigh in Irish — related form
Casis among us
people named Casi are estimated to be alive in the US today
Estimated from SSA birth records and published actuarial life tables. Method
Is it right for you
Questions parents actually ask
Fashion outlook
Casi sits outside the current charts, and that is its own kind of answer: naming cycles can only date the names they carried up. A name this rare has no decade stamped on it — it cannot go out of fashion, because it was never in.
Based on 146 years of naming cycles. How we read them
The trade-off
- Four letters, no ambiguity in speech, and about as economical as the name can be written.
- It works for a daughter or a son, which the whole family of spellings does.
- The sound is warm and informal without being childish.
- Casey is far commoner and will be written instead on nearly everything.
- The bare final i dates a certificate fairly precisely to the last decades of the century.
- There is no longer name behind it and no meaning to give her.
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Casi
Feminine
Frequently asked
- How many Casis are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 1,100 people named Casi are estimated to be alive in the US today.
- How popular is the name Casi in 2025?
- Casi is rarely given in the US today — it does not rank in the top 2000 girl names.
- Will my child share the name Casi with classmates?
- Casi will almost certainly be the only one in school.
More C names
The most-given names starting with C, all years combined.
Carol#2239 · Cynthia#1013 · Catherine#313 · Christine#1272 · Carolyn#1222 · Christina#770 · Charlotte#2 · Cheryl#4352
Looking for what else is popular rather than what resembles Casi? See the current top 100.
Choosing between Casi and another name?
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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