Cassi
- US rank
- #14,942
- Syllables
- 2
- Peak
- #1,112 in 1984
5 babies were named Cassi in the US in 2025. It has climbed 146 places in five years.
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US births per million girls, 1959–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Cassi you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- How commonAbout 1 in every 322,581 baby girls born in the US in 2025 was named Cassi, 5 babies in all. In a typical school of 500 kids, your Cassi would very likely be the only one.
- HistoryCassi first shows up in US birth records in 1959, the first year at least 5 babies got it. It has been in use for 66 years since.
- Best yearIt was far more popular in 1984, when it ranked #1,112. Today it's #14,942, so it could be due a comeback.
- Then vs nowCassi was 7.3× more common in 2000 than it is today. In 2000 it was given to about 1 in 44,248 baby girls; in 2025, about 1 in 322,581.
- TrendCassi has climbed 146 places in the US rankings over the last five years and now sits at #14,942. Fast risers like this often keep climbing, so expect to hear it more.
About the name Cassi
Cassi is a girl name of Irish origin. It has 5 letters and 2 syllables, starting with C and ending in “-ssi”. US birth records list Cassi for girls from 1959 to 2025, in 65 of those 67 years. Its best year was 1984, when it ranked #1,112 among girl names. In 2025 it ranked #14,942, with 5 babies.
Origin:Irish names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1950s | 3.0 | 333,333 girls |
| 1960s | 5.1 | 196,850 girls |
| 1970s | 15 | 65,445 girls |
| 1980s | 61 | 16,437 girls |
| 1990s | 32 | 31,182 girls |
| 2000s | 12 | 82,372 girls |
| 2010s | 8.0 | 125,156 girls |
| 2020s | 3.7 | 270,270 girls |
Other spellings of Cassi
More Irish girl names
- Girl name: Abigail · my father is joy
- Unisex name: Riley · rye clearing
- Girl name: Maeve · she who intoxicates
- Unisex name: Kennedy · helmeted head
- Unisex name: Rylee · rye clearing
- Unisex name: Sloane · raider
- Unisex name: Alani · orange tree
- Girl name: Everleigh · boar clearing
Questions about the name Cassi
What is the origin of the name Cassi?
Cassi has Irish roots in our records. Other Irish names include Abigail, Riley, Maeve.
Is Cassi a boy or girl name?
Cassi is a girl name.
How popular is the name Cassi?
Cassi ranked #14,942 for US girls in 2025, given to 5 babies. Its best year was 1984 (#1,112).