Cassey
- US rank
- Unranked
- Syllables
- 2
- Peak
- #1,343 in 1986
0 babies were named Cassey in the US in 2025.
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US births per million girls, 1968–2025
US births per million boys, 1975–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Cassey you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- HistoryCassey first shows up in US birth records in 1968, the first year at least 5 babies got it. It has been in use for 57 years since.
- Best yearIts best year was 1986, when it reached #1,343.
About the name Cassey
Cassey is a gender-neutral name of Irish origin. It has 6 letters and 2 syllables, starting with C and ending in “-sey”. US birth records list Cassey for girls from 1968 to 2021, in 51 of those 54 years. Its best year was 1986, when it ranked #1,343 among girl names. It hasn't been given to 5 or more US babies in a year since 2021, so today it's a genuinely rare choice.
Origin:Irish names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1960s | 2.1 | 465,116 girls |
| 1970s | 10 | 99,108 girls |
| 1980s | 43 | 23,436 girls |
| 1990s | 28 | 35,211 girls |
| 2000s | 11 | 89,767 girls |
| 2010s | 3.7 | 269,542 girls |
| 2020s | 3.7 | 270,270 girls |
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1970s | 4.1 | 246,305 boys |
| 1980s | 3.5 | 284,900 boys |
| 1990s | 3.6 | 275,862 boys |
Other spellings of Cassey
More Irish names
- Boy name: Liam · resolute protector
- Unisex name: Owen · well-born
- Girl name: Abigail · my father is joy
- Unisex name: Riley · rye clearing
- Unisex name: Logan · little hollow
- Unisex name: Nolan · descendant of Nuallán
- Girl name: Maeve · she who intoxicates
- Unisex name: Kennedy · helmeted head
Questions about the name Cassey
What is the origin of the name Cassey?
Cassey has Irish roots in our records. Other Irish names include Liam, Owen, Abigail.
Is Cassey a boy or girl name?
Both. Cassey is used for boys and girls.
How popular is the name Cassey?
Cassey is rare: fewer than 5 US girls got it in 2025, and it was last given to 5 or more in 2021. It peaked at #1,343 in 1986.