MallowbyNames

Kacey

KAY-see · Combination of initial K- and Casey, or a diminutive of names beginning with K-; also considered a modern spelling variant of Casey.

2025 rank (girls)
#1,117
Babies named in 2025
211
Peak popularity
1991
2025 frequency
1 in 7,617 girls
Usually for
Girls & boys
Trend
Rising since 2012

Rising since 2012, #1,117 for girls today.

Popularity of Kacey since 1952

Babies named Kacey per year in U.S. Social Security records.

1342684021960198020002020Most births 1991GirlsBoys
GirlsBoys
Data table (by decade)
DecadeGirlsBoys
1950s280
1960s10636
1970s1,037229
1980s2,645410
1990s3,158640
2000s2,172455
2010s1,592344
2020s1,2231,190

Meaning & origin

Kacey first appeared on U.S. birth records in 1952 and saw a surge in the 1990s, reaching its peak popularity as the 1117th most popular name in 1991. Since 2012, the name has been on a rising trajectory, though it remains relatively uncommon: in 2025, it occurred at a rate of 1 in 7,617 births. The top states for Kacey include Mississippi, Alabama, and Georgia, indicating a regional preference in the American South. As a modern variant of the Irish-derived Casey, Kacey offers a fresh take on a classic surname name while maintaining a unisex appeal that suits the contemporary naming landscape.

Kacey is a modern coinage that emerged in the United States during the mid-20th century. It blends the phonetic appeal of Casey, an Irish surname from the Gaelic Ó Cathasaigh ('descendant of Cathasach,' meaning 'watchful'), with the distinctive initial letter K. The name has been used for both boys and girls since the 1950s.

Where Kacey is most popular

Births per 100,000 girls by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.

2020s
Fewermore per 100k girlstoo few births

Kacey” around the world

Where Kacey lands in the latest official birth statistics abroad, matched to the U.S. spelling.

  • Quebec

    6

    babies in 2025

Sources: Retraite Québec (Quebec).

Nicknames & variants

Nicknames: Kace, Case, Cay

Variants: Kacie, Kasey, Kacy

Sibling names for Kacey

Names that share Kacey's style, for a brother or sister.

Names like Kacey

Names whose popularity has moved with Kacey's over the last 50 years.

A parent animal hugging its little one, the personalized name page

K is for Kacey, our favorite little person.

K is for Kacey…”

In a Mallowby alphabet book, Kacey's letter becomes Kacey's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Kacey's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Kacey mean?
Kacey is a modern name typically formed from the initial K- and the name Casey, which derives from an Irish surname meaning 'descendant of Cathasach,' the latter signifying 'watchful' or 'attentive.'
How popular is the name Kacey?
In 2025, Kacey ranked 1117th in the U.S., with about 1 in every 7,617 newborns receiving the name. Its peak popularity was in 1991.
Is Kacey a boy's or girl's name?
Kacey is unisex, though in recent decades it has been given more often to girls in the United States.