NameRealm
Kacey

Kacey: name meaning, origin & popularity

Meaning
“vigilant; watchful”
Origin
Irish
Say it
KAY-see · 2 syllables
Used for
Both (79% girls, 21% boys since 1880)

Usually a modern spelling of Casey, from an Irish surname derived from Cathasaigh. The surname is commonly explained as ‘vigilant’ or ‘watchful.’

Irish namesEnglish namesAmerican namesNames meaning wisdomModern namesSurname-style namesShort names

How popular is Kacey?

2024131 per million US babies
1880192019602000
Drag the line or the slider to read any year. Values are per million US births recorded by Social Security. Records before about 1937 undercount births, so early peaks can look taller than they were.

Babies named Kacey in 2024436

2024 rank#1,093 girls

Peak year2024

Total US babies since 188014,868

Kacey is rising: use over the last five years is 2.4× what it was a decade earlier.

Names like Kacey

Variants, related forms and names with the same roots.

  • Caseyvigilant · Irish
  • Kaycemodern spelling of Casey · American (modern coinage)
  • Kaseyvigilant, watchful · Irish
  • Kacievigilant · Irish
  • Kacivigilant; watchful · English
  • Kacyvigilant; watchful · Irish
  • Rileyvaliant · Irish
  • Rowanlittle red-haired one · Irish

Kacey questions

What does the name Kacey mean?

Kacey means "vigilant; watchful". It comes from Irish. Usually a modern spelling of Casey, from an Irish surname derived from Cathasaigh. The surname is commonly explained as ‘vigilant’ or ‘watchful.’

Is Kacey a boy or girl name?

Kacey is used for both: about 79% of US babies named Kacey since 1880 were girls.

How popular is Kacey?

436 US babies were named Kacey in 2024. Its peak year was 2024.

How do you pronounce Kacey?

Kacey is usually pronounced KAY-see.

Birth counts: US Social Security Administration national data, 1880–2024 (names given to 5+ babies of a sex in a year). How we write meanings.