Cassi
Cassi was the 15382nd most popular name for girls in 2025, given to 5 babies. Its best year was 1984, when it ranked 1112th; the most babies were born in 1982 (126). Over the last ten years it has moved down 8,604 places. More babies were named Cassi in the 1980s than in any other decade.
Meaning (as Cassie) pet form of Cassandra · English, Greek
- Rank in 2025
- #15,382 girls, up 207 places since 2020
- Babies in 2025
- 5girls
- Girls and boys
- Almost always a girl’s name2021–2025
- Peak year
- 1982126 babies
- Total since 1880
- 2,361babies recorded
What does the name Cassi mean?
Cassi 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
- Wiktionary, entry 'Cassie', Wiktionary (Wikimedia Foundation)
- Dictionary of Medieval Names from European Sources, ed. S. L. Uckelman, Edition 2023 no. 1, s.v. 'Cassandra', DMNES (Durham University)
- Wikipedia, 'Cassie', Wikipedia (Wikimedia Foundation)
Cassi popularity since 1880
| Year | Rank (girls) | Babies (girls) |
|---|---|---|
| 2025 | #15,382 | 5 |
| 2020 | #15,589 | 5 |
| 2010 | #6,014 | 22 |
| 2000 | #3,283 | 41 |
| 1990 | #1,829 | 78 |
| 1980 | #2,193 | 46 |
| 1970 | #3,604 | 17 |
| 1960 | #5,233 | 7 |
| 1950 | — | — |
| 1940 | — | — |
| 1930 | — | — |
| 1920 | — | — |
| 1910 | — | — |
| 1900 | — | — |
| 1890 | — | — |
| 1880 | — | — |
How popular is Cassi, counting every spelling?
Cassi is a spelling of Cassie, a name family that ranked #931 for girls in 2025 once every spelling is counted together, compared with #15,382 for Cassi on its own. Together these spellings went to 265 girls in 2025.
| Spelling | Babies 2025 | Official rank | Babies 2021–2025 |
|---|---|---|---|
| Cassie | 175 | #1,280 | 925 |
| Kassie | 55 | #3,010 | 225 |
| Kassey | 6 | #14,047 | 58 |
| Kassi | 9 | #10,494 | 39 |
| Kasie | 9 | #10,493 | 38 |
| Casie | 6 | #13,533 | 38 |
| Cassi | 5 | #15,382 | 31 |
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 Cassi?
5 of the 3,606,400 babies born in the US in 2025 were named Cassi (0.00 per 1,000 births). For a girl named Cassi 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 1,661 (of 430 pupils) would have a child named Cassi.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Cassi?
About 2,300 people born in the US named Cassi are alive today, with a median age of 38; half are between 30 and 43. That makes Cassi mostly worn by adults in their thirties to fifties.
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 Cassi: their share of US girls followed the most similar curve since 1880. If you like Cassi, they share its era and feel.
Questions about the name Cassi
What does Cassi mean?
Cassi is a spelling of Cassie, which means “pet form of Cassandra” (English, Greek origin). Certainty: well established.
How popular is the name Cassi?
Cassi was the 15382nd most popular name for girls in 2025, given to 5 babies. Its best year was 1984, when it ranked 1112th; the most babies were born in 1982 (126). Over the last ten years it has moved down 8,604 places. More babies were named Cassi in the 1980s than in any other decade.
Is Cassi a boy or girl name?
In 2021–2025, almost always a girl’s name given the name Cassi in the US.