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Kacey
♂ Boy
Pronounced KAY-see /ˈkeɪ.si/High
Meaning: Vigilant, watchful; a K-spelling variant of Casey, from Irish Gaelic Cathasach (watchful, vigilant)High
In 30 seconds: A K-spelling of Casey meaning 'vigilant' in Irish Gaelic. In boys' data it coexists alongside the more common male Kasey and Casey spellings — a name equally comfortable for boys and girls.
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Origin HighIrish
MeaningVigilant, watchful; a K-spelling variant of Casey, from Irish Gaelic Cathasach (watchful, vigilant)
U.S. rank (2024)#1043 ↘ Falling
2024 U.S. births211 boys (0.01% of U.S. boys)
Peak year2021
Total births (all-time)≈ 3,119
Popularity in the U.S. · SSA data
U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.
History & Origin
Kacey is a K-spelling variant of Casey (Irish Gaelic Cathasach: vigilant, watchful). See also Kacey (female entry) and Casey entries.
Kacey ranked #1043 for boys in 2024.
Did you know? The various spellings of Casey/Kacey/Kasey together represent one of the most spelling-fragmented names in American naming — with the SSA counting each spelling separately, giving parents an almost endless palette of phonetically identical name options.
Overall data confidence 87%
Behind the Name — Casey — Irish Gaelic etymologyU.S. Social Security Administration — popularity data
Variations
CaseyKaseyKacy
Nicknames
Kace
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Frequently Asked
What does the name Kacey mean?
Kacey means 'vigilant,' a K-spelling variant of Casey, from Irish Gaelic Cathasach (watchful).
How do you pronounce Kacey?
It's said KAY-see — two syllables, stress on the first.
Is Kacey a boy or girl name?
Kacey is used for both sexes.
How popular is Kacey?
Kacey ranked #1043 for U.S. boys in 2024.






