Nameling

Kaysee

Gender
Girl
Say it
KAY-see
Origin
Irish

Kaysee is a girls' name of Irish origin, meaning “vigilant”. Too few babies were given it in the latest year to rank.

What does Kaysee mean?

Irish: spelling of Kaysie, itself a variant of Casey, from the surname O Cathasaigh

“vigilant”

A respelling of Casey, from the Irish surname O Cathasaigh, based on cathasach 'vigilant'.

Meaning borrowed from Kaysie.

Is Kaysee a girl's or a boy's name?

Kaysee is a girls' name.

How popular is Kaysee in the US?

No girls in the US were given it in 2025, or too few to be listed. Its busiest year was 1995, with 19 girls. It first appears in the records in 1983.

Half of all the girls named Kaysee in the US since 1880 were born between 1992 and 2007, the years shaded on the chart below.

1983Busiest: 19 in 19952021
Kaysee in the US, year by year
YearGirlsRank
20216#13,459
20200–
20196#13,793
20185#15,677
20177#12,709
20169#10,855
20156#14,477
20149#10,949
201311#9,607
20126#14,956
20110–
20106#14,953
200912#9,375
200811#10,080
20078#12,671
20060–
20059#10,915
20047#12,754
200311#9,043
20028#11,102
200112#8,189
200018#5,932
199917#5,890
199814#6,714
199715#6,158
199619#5,060
199519#5,014
199417#5,440
199318#5,200
199212#7,060
199117#5,393
199012#6,861
198913#6,154
198810#7,106
19878#7,982
19867#8,518
19857#8,315
19846#9,139
19838#7,310

Nicknames for Kaysee

Names like Kaysee

Names given in the same years and the same naming tradition, with a similar sound.

Names related to Kaysee

More Irish names

Every Irish name

Sources

Figures from Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.

To cite this page: Nameling, “Kaysee: name meaning, origin and popularity”, https://www.nameling.co.uk/names/kaysee, updated 20 October 2026.