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Kaycee

Gender
Mostly girls
Say it
KAY-see
Origin
Irish
UK rank, 2025
#4,935 for girls
US rank, 2025
#1,299 for girls

Kaycee is a name of Irish origin, meaning “vigilant”. In 2025 it ranked 4,935th for girls in the UK (4 babies) and 1,299th for girls in the US (171 babies).

What does Kaycee mean?

Irish: spelling of Casey, or from the initials K.C.

“vigilant”

A spelling of Casey, from the Irish surname Ó Cathasaigh, based on cathasach, 'vigilant'.

More on Wiktionary.

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

In recent years, Kaycee has been given to girls and boys, mostly girls. In 2025, it was given to 4 girls and 3 boys in the UK and 171 girls and 49 boys in the US.

How popular is Kaycee in the UK?

Rank in 2025
4,935th among girls
Babies in 2025
4 about 1 in 70,000 girls
Five-year trend
Falling down 30% in five years
Same name in a class
under 1% chance among 15 girls

In 2025, 4 girls in the UK were named Kaycee, making it the 4,935th most popular name for girls. Five years earlier, in 2020, it was 4,744th. Its busiest year was 2011, with 55 girls. 3 boys were also named Kaycee in 2025 (5,065th for boys).

2025 had fewer girls named Kaycee than any year since 2020.

Half of all the girls named Kaycee in the UK since 1996 were born between 2007 and 2014, the years shaded on the chart below.

In 2025, 67 girls in the UK were given Kaycee or a name that sounds the same. With every name's spellings counted this way, that ranks #589, up from #4,935 for this spelling alone.

Among girls in 2025, it was 4,866th in England and Wales.

1997Busiest: 55 in 20112025
Kaycee in the UK, year by year
YearGirlsRank
20254#4,935
20246#3,758
20239#2,841
20229#2,805
20217#3,338
20204#4,744
201914#2,052
20189#2,825
201722#1,541
201624#1,452
201525#1,389
201423#1,452
201328#1,296
201252#808
201155#748
201053#753
200943#864
200827#1,176
200738#893
200628#1,062
200519#1,332
200421#1,194
200312#1,730
200215#1,399
200121#1,070
20004#3,399
19995#2,912
19986#2,535
199718#1,164

How popular is Kaycee in the US?

Rank in 2025
1,299th among girls
Babies in 2025
171 about 1 in 9,400 girls
Five-year trend
Steady down 3% in five years
Same name in a class
under 1% chance among 15 girls

In 2025, 171 girls in the US were named Kaycee, making it the 1,299th most popular name for girls. Five years earlier, in 2020, it was 1,373rd. Its busiest year was 1998, with 263 girls. It first appears in the records in 1955. 49 boys were also named Kaycee in 2025 (2,641st for boys).

Half of all the girls named Kaycee in the US since 1880 were born between 1992 and 2013, the years shaded on the chart below.

In 2025, 1,196 girls in the US were given Kaycee or a name that sounds the same. With every name's spellings counted this way, that ranks #284, up from #1,299 for this spelling alone.

Girls were 93% of the babies named Kaycee in the US in 1979, and 78% in 2025.

1955Busiest: 263 in 19982025
Kaycee in the US, year by year
YearGirlsRank
2025171#1,299
2024164#1,378
2023167#1,348
2022182#1,295
2021158#1,384
2020158#1,373
2019177#1,295
2018184#1,255
2017158#1,436
2016201#1,224
2015193#1,263
2014200#1,221
2013173#1,347
2012180#1,307
2011170#1,354
2010208#1,165
2009197#1,249
2008202#1,242
2007189#1,292
2006196#1,227
2005164#1,333
2004164#1,301
2003179#1,194
2002208#1,037
2001198#1,073
2000210#1,005
1999216#956
1998263#808
1997235#868
1996216#907
1995236#829
1994235#847
1993231#846
1992195#977
1991248#824
1990232#846
1989218#849
1988157#1,027
1987175#935
1986135#1,097
1985100#1,323
1984115#1,168
198389#1,346
198285#1,429
198173#1,596
198069#1,657
197966#1,678
197847#2,012
197737#2,381
197637#2,255
197540#2,136
197431#2,433
197315#3,970
197216#3,714
197112#4,532
197015#3,871
196912#4,197
19680–
19675#6,803
19665#6,563
19656#5,816
19640–
19630–
19625#6,577
19610–
19600–
19597#5,030
19586#5,407
195713#3,308
19560–
19555#5,826

Nicknames for Kaycee

Names like Kaycee

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

Other spellings of Kaycee

Names related to Kaycee

More Irish names

Every Irish name

Sources

Figures from Baby names in England and Wales (Office for National Statistics), Babies' first names (National Records of Scotland), Baby names (Northern Ireland Statistics and Research Agency) and 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, “Kaycee: name meaning, origin and popularity”, https://www.nameling.co.uk/names/kaycee, updated 20 October 2026.