Kaci
Respelling of Casey, which comes from the Irish surname O Cathasaigh, descendant of Cathasach, a byname meaning vigilant or watchful.
Kaci in 2025
Kaci was given to 99 babies in the United States in 2025 — 11 boys and 88 girls, making it the 3,561st most popular name of the year. That is roughly one in every 33,488 babies born.
The history of Kaci
Kaci reached its highest point in 1990, when 362 babies were given the name, ranking 1,135th that year. Its best-ever ranking was 1,103rd, in 1986.
Across the 61 years of records since 1965, 10,183 babies have been named Kaci. Half of them were born before 1997, which places the name's centre of gravity with Generation Z.
Kaci by decade
| Decade | Babies named Kaci | Best rank |
|---|---|---|
| 1960s | 37 | 5,839 |
| 1970s | 619 | 1,679 |
| 1980s | 2,319 | 1,103 |
| 1990s | 2,816 | 1,135 |
| 2000s | 2,173 | 1,668 |
| 2010s | 1,496 | 2,366 |
| 2020s | 723 | 2,821 |
Where Kaci is heading
Kaci has fallen 33% over the past decade, from 147 babies in 2015 to 99 in 2025.
Names like Kaci
Names that rose and fell at the same time as Kaci.