Cacy
A girl's name of Irish origin with 52 recorded U.S. births.
Meaning & Origin
Cacy peaked during the Gen X years, when 7 babies received this name in a single year (1979). That era was defined by post-traditional, counterculture-influenced naming, and Cacy has a more concentrated history, reflecting a specific cultural moment rather than a broad generational wave.
Cacy is not in the current top 1,000 girl names nationally, making it an uncommon choice — though your state or community may differ.
Cacy is a girl's baby name, a creative spelling variant of Casey, the popular Irish name derived from the Gaelic Cathasaigh meaning 'watchful' or 'brave in battle.' Casey has been used for both boys and girls since the 1980s.
The Cacy spelling gives this familiar Irish name a softer, more distinctive visual identity. It carries Casey's spirited, unisex energy — confident and unpretentious, with the warmth of a classic Celtic name that has made a thoroughly American home for itself.
EtymologyShow more
Phonetically, Cacy belongs to a cluster of names characterized by their sharp, distinct ending — ending on a consonant gives it a firm, clear close. At two syllables, it has a two-beat rhythm that is easy to call across a room and natural in conversation.
Within the Irish naming tradition, names with similar sound structures often share underlying etymological patterns. Exploring Irish names on this site may surface connections that illuminate Cacy’s linguistic neighborhood.
At a Glance
Popularity Over Time
Cacy has 9+ years of history in the U.S., first appearing in 1975.
Popularity by Decade
| Decade | Births | Trend |
|---|---|---|
| 2000s | 6 | ▼ |
| 1990s | 16 | ▼ |
| 1980s | 18 | ▲ |
| 1970s | 12 | — |
The Story of Cacy
A Gen X name
Peaking in 1979, Cacy is a Gen X staple. Girls named Cacy are most likely born between 1975 and 1989.
How rare is Cacy?
With fewer than 500 recorded births, Cacy is an exceptionally rare name — a one-of-a-kind choice.
The journey through the decades
First appeared in the records in 1975, peaked in the 1980s with 18 births that decade, and has gracefully settled into a quieter chapter.
Cacy by the numbers
- Would fill 1 school bus
Year-by-Year Data
View complete yearly data(9 years, 1975–2001)
| Year | Births | Rank |
|---|---|---|
| 2001 | 6 | #13805 |
| 1998 | 5 | #14494 |
| 1996 | 5 | #13845 |
| 1994 | 6 | #11998 |
| 1987 | 5 | #11530 |
| 1986 | 7 | #8647 |
| 1981 | 6 | #9261 |
| 1979 | 7 | #8146 |
| 1975 | 5 | #9234 |
Source: U.S. Social Security Administration. Showing years with 5+ recorded births.
Frequently Asked Questions
Is Cacy a boy's or girl's name?
When was Cacy most popular?
How popular is the name Cacy?
Explore More
Data source: U.S. Social Security Administration, 1975–2001