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Casie

Gender
Girl
Say it
KAY-see
Origin
Irish
US rank, 2025
#13,203 for girls

Casie is a girls' name of Irish origin, meaning “vigilant”. In 2025 it ranked 13,203rd for girls in the US (6 babies).

What does Casie mean?

Irish: spelling of Casey, from Ó Cathasaigh

“vigilant”

A spelling of Casey, from the Irish surname Ó Cathasaigh.

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

Casie is a girls' name. In 2025, it was given to 6 girls in the US. Too few boys were given it to be listed.

How popular is Casie in the UK?

No girls in the UK were given it in 2025, or too few to be listed. Its busiest year was 2000, with 17 girls.

Half of all the girls named Casie in the UK since 1996 were born between 2000 and 2008. It was already well used in 1996, when the records begin, so earlier girls aren't counted.

1996Busiest: 17 in 20002022
Casie in the UK, year by year
YearGirlsRank
20221#7,487
20214#4,864
20200–
20190–
20185#4,204
20170–
20160–
20150–
20140–
20136#3,719
20126#3,881
20116#3,737
201011#2,379
20097#3,201
200816#1,745
200716#1,694
200613#1,860
200513#1,807
200417#1,399
200311#1,831
200210#1,874
200117#1,261
200017#1,230
199913#1,493
199812#1,585
19971#5,110
199611#1,621

How popular is Casie in the US?

Rank in 2025
13,203rd among girls
Babies in 2025
6 about 1 in 270,000 girls
Five-year trend
Too rare to call too few babies to tell
Same name in a class
under 1% chance among 15 girls

In 2025, 6 girls in the US were named Casie, making it the 13,203rd most popular name for girls. Five years earlier, in 2020, it was 11,085th. Its busiest year was 1983, with 231 girls. It first appears in the records in 1962.

Half of all the girls named Casie in the US since 1880 were born between 1981 and 1993, the years shaded on the chart below.

1962Busiest: 231 in 19832025
Casie in the US, year by year
YearGirlsRank
20256#13,203
20247#12,156
20238#11,164
20225#15,300
202112#8,459
20208#11,085
20190–
20187#12,459
201714#7,836
201613#8,390
20157#13,001
20140–
20139#10,995
201213#8,628
20119#11,175
201020#6,380
200920#6,541
200819#6,796
200728#5,095
200619#6,590
200515#7,495
200422#5,551
200344#3,287
200255#2,741
200152#2,804
200068#2,273
199975#2,048
199886#1,798
199788#1,739
1996107#1,501
1995117#1,398
1994127#1,328
1993145#1,192
1992180#1,032
1991172#1,053
1990165#1,070
1989186#947
1988179#940
1987229#775
1986225#766
1985206#802
1984219#744
1983231#720
1982229#738
1981221#747
1980201#805
1979184#846
1978145#958
1977105#1,175
197689#1,252
197595#1,211
1974103#1,124
197349#1,773
197248#1,786
197131#2,427
197025#2,779
196919#3,101
196814#3,609
196715#3,339
19660–
19650–
19640–
19635#6,591
19625#6,577

Names like Casie

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

Caoimhe, Erin, Caragh, Cassidy, Keira, Caitlin, Cara, Ffion, Cassie, Bree, Casey, Teagan

Names related to Casie

Cassia, Casi, Kasie, Chaise, Cassi, Cassey, Caasi

More Irish names

Oscar, Rowan, Rory, Maeve, Finn, Aiden, Ryan, Nolan, Quinn, Orla, Cody, Ronan, Connor, Declan, Kennedy, Callan

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, “Casie: name meaning, origin and popularity”, https://www.nameling.co.uk/names/casie, updated 20 October 2026.