Cassy Girl
How popular is Cassy?
Peaked in 1986
No babies were recorded with the name Cassy in 2025. It was most used in 1986, when 105 girls got the name.
1,926living people named Cassy (est.)
39median age of people named Cassy
1,996babies named Cassy since 1880
Cassy popularity over time
| Rank in 2025 | Not ranked |
|---|---|
| Babies in 2025 | 0 girls |
| 10-year trend | Falling fast (-100% babies vs 2015) |
| Peak year | 1986 (105 girls) |
| Highest rank | #1,282 in 1986 |
| First recorded | 1947 |
| Boys vs girls (last 10 years) | 0% boys, 100% girls |
Cassy counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Cassie family of names ranked #659 for girls in 2025 (#636 the year before), with 411 babies in all.
| Spelling | Girls in 2025 | Share |
|---|---|---|
| Cassie | 175 | 43% |
| Kasey | 105 | 26% |
| Kassie | 55 | 13% |
| Kaysie | 11 | 3% |
| Kasie | 9 | 2% |
| Kaysi | 13 | 3% |
| Kaisey | 12 | 3% |
| Cassi | 5 | 1% |
| Kassi | 9 | 2% |
| Kassey | 6 | 1% |
| Casie | 6 | 1% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Cassy by decade
| Decade | Baby girls | Best rank |
|---|---|---|
| 1940s | 12 | #4,649 |
| 1950s | 46 | #3,746 |
| 1960s | 121 | #2,863 |
| 1970s | 240 | #2,050 |
| 1980s | 790 | #1,282 |
| 1990s | 527 | #1,858 |
| 2000s | 210 | #3,659 |
| 2010s | 50 | #11,240 |
Questions
- Is Cassy a boy or girl name?
- Cassy is mostly a girl name. Over the last 10 years, 100% of babies named Cassy were girls.
- How popular is the name Cassy?
- No babies were recorded with the name Cassy in 2025. It was most used in 1986, when 105 girls got the name.
- When was Cassy most popular?
- Cassy peaked in 1986, when 105 girls were given the name. Its highest rank was #1,282 in 1986.
- How many people are named Cassy?
- 1,996 babies have been named Cassy in the US since 1880. We estimate about 1,926 of them are alive in 2026, with a median age of 39.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.