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2025 data, released 8 May 2026

Kassi

Kassi was the 10494th most popular name for girls in 2025, given to 9 babies. Its best year was 1986, when it ranked 1265th with 107 babies. Over the last ten years it has moved up 3,224 places. More babies were named Kassi in the 1980s than in any other decade.

Meaning (as Cassie) pet form of Cassandra · English, Greek

Rank in 2025
#10,494 girls, up 2,308 places since 2020
Babies in 2025
9girls
Girls and boys
Almost always a girl’s name2021–2025
Peak year
1986107 babies
Total since 1880
2,110babies recorded

What does the name Kassi mean?

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

Cassie is a pet form of Cassandra (and sometimes of Cassidy), made with the ending -ie. Cassandra is the Trojan princess of Greek legend who could foretell the future but was never believed. DMNES calls the Greek name of uncertain origin: one part may come from the word for "man", and scholars have proposed other roots meaning "excel" or "raise". Cassie was most popular in the US in the 1980s.

Κασσάνδρα (Ancient Greek, “Kassandra, of uncertain origin”)

How sure is this? Well established. Cassie is clearly a pet form; the meaning of Cassandra is uncertain.

Related names: Cassandra, Cass, Cassidy, Kassie.

See also: Greek names.

Sources for this meaning

Kassi popularity since 1880

050100150200 1900192019401960198020002020
Girls Babies per year, US, from Social Security records. Years with fewer than 5 babies show as zero.
YearRank (girls)Babies (girls)
2025#10,4949
2020#12,8027
2010#10,82610
2000#2,68755
1990#1,62992
1980#2,90431
1970#5,21410
1960——
1950——
1940——
1930——
1920——
1910——
1900——
1890——
1880——

How popular is Kassi, counting every spelling?

Kassi is a spelling of Cassie, a name family that ranked #931 for girls in 2025 once every spelling is counted together, compared with #10,494 for Kassi on its own. Together these spellings went to 265 girls in 2025.

SpellingBabies 2025Official rankBabies 2021–2025
Cassie175#1,280925
Kassie55#3,010225
Kassey6#14,04758
Kassi9#10,49439
Kasie9#10,49338
Casie6#13,53338
Cassi5#15,38231

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 Kassi?

9 of the 3,606,400 babies born in the US in 2025 were named Kassi (0.00 per 1,000 births). For a girl named Kassi 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 930 (of 430 pupils) would have a child named Kassi.

Chance of another Kassi in a class of 20under 1 in 50US, born 2025

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

How old are people named Kassi?

About 2,100 people born in the US named Kassi are alive today, with a median age of 35; half are between 27 and 41. That makes Kassi mostly worn by adults in their thirties to fifties.

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.

Names with a similar history

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

Questions about the name Kassi

What does Kassi mean?

Kassi is a spelling of Cassie, which means “pet form of Cassandra” (English, Greek origin). Certainty: well established.

How popular is the name Kassi?

Kassi was the 10494th most popular name for girls in 2025, given to 9 babies. Its best year was 1986, when it ranked 1265th with 107 babies. Over the last ten years it has moved up 3,224 places. More babies were named Kassi in the 1980s than in any other decade.

Is Kassi a boy or girl name?

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