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Casey as a Baby Name. Meaning and Origin of Casey

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The baby name Casey is a Unisex name , 2 syllables long and is pronounced KAY-see (IPA: /ˈkeɪsi/).

Casey is Irish in Origin.

Gender: Unisex
Syllables: 2.0
Origin: Irish
Pronunciation: KAY-see (IPA: /ˈkeɪsi/)

What is the meaning of the name Casey ?

The baby name Casey is a Unisex name , 2 syllables long and is pronounced KAY-see (IPA: /ˈkeɪsi/).

Casey is Irish in Origin.

Casey is an Anglicized Irish name derived from the surname Ó Cathasaigh, “descendant of Cathasach.” The underlying Gaelic personal name Cathasach means “vigilant, watchful,” often analyzed in relation to cath, “battle,” implying keenness or alertness. While born as a surname, Casey functions comfortably as a given name across the English-speaking world, retaining a crisp, modern feel with deep Gaelic roots.

In the United States, it gained wide recognition through late-19th and early-20th century popular culture - think the 1888 poem “Casey at the Bat” and the ballad of railroad engineer Casey Jones - before rising as a unisex favorite in the late 20th century. Common variants include Kasey, Kacey, Kayce, and Kaycee; KC also appears as an initial-based spelling. Diminutive or short forms include Case. In Irish contexts, related forms include the given name Cathasach and the surnames Ó Cathasaigh (male) and Ní Chathasaigh (female).

Casey has the following similar or variant Names

Famous people with the name Casey

Casey Affleck Actor · Born 1975 · United States Casey Affleck is an American actor best known for films like Manchester by the Sea, Gone Baby Gone, and The Assassination of Jesse James by the Coward Robert Ford. Born Caleb Casey McGuire Affleck-Boldt on August 12, 1975, he has won major honors including an Academy Award, a BAFTA, and a Golden Globe. Casey Neistat Actor · Born 1981 · United States Casey Neistat is best known as a YouTuber and filmmaker known for his popular vlogs and creative videos. He co-founded the multimedia company Beme, which was later acquired by CNN, and in 2018 he launched 368, a collaborative creative space for creators. Casey Calvert Actor · Born 1990 · United States Casey Calvert is best known as an American adult film actress and director. She has won several awards in the adult film industry and has also written about the industry for mainstream media publications.
Casey Wilson Actor · Born 1980 · United States Casey Wilson is an American actress, comedian, and screenwriter best known for Saturday Night Live and her work with the Upright Citizens Brigade. She was a cast member on SNL from 2008 to 2009 after building her comedy career in New York City. Casey Cott Actor · Born 1992 · United States Casey Cott is an American actor best known for playing Kevin Keller on The CW series Riverdale. Born on August 8, 1992, he became widely recognized for that breakout role on the hit teen drama. Casey Siemaszko Actor · Born 1961 · United States Casey Siemaszko is an American actor best known for his roles in films like 'Back to the Future', where he played 3-D, a member of Biff's gang, and 'Young Guns', where he portrayed Charley Bowdre. Born in 1961, he has appeared in various movies and television shows, showcasing his versatility as an actor.

Celebrity babies named Casey

Name Last Name(s) Mother Mother famous for Fame Level Father Father famous for Fame Level
Casey Kramer Stanley Kramer film producer ★★★★★
Casey King Joyce Van Patten television actor ★★★★★ Martin Balsam television actor ★★★★★

Casey – Popularity by country

Based on birth registration data from national statistics agencies.

Country Gender Year Rank Born of
Ireland Girls 2025 #1 — 874
Ireland Boys 2025 #1 — 836
KR Boys 0 #27 1 897
BG 0 #82 1 1,799
CN 0 #84 3 3,857
PH 0 #85 12 5,607
JM 0 #92 2 3,714
ID Girls 0 #102 1 3,319
TW 0 #102 2 4,523
QA 0 #106 1 7,011
BN Girls 0 #111 4 5,459
CY Girls 0 #123 3 3,755
IQ 0 #133 1 3,533
Switzerland Girls 2024 #134 2 1,786
ID Boys 0 #135 1 4,130
Canada Boys 2024 #136 204 2,588
BW Girls 0 #136 13 4,216
PA 0 #137 2 3,797
BN Boys 0 #139 1 6,332
MT Girls 0 #142 10 3,773
CR 0 #146 13 5,526
BW Boys 0 #151 4 4,685
Sweden Girls 2019 #171 3 1,585
HU Boys 0 #174 1 3,954
MT Boys 0 #177 3 4,064
SI Girls 0 #177 1 2,769
Sweden Boys 2021 #181 3 1,578
AE 0 #181 7 10,220
CZ 0 #186 1 3,154
LU Girls 0 #190 1 4,850
NA Girls 0 #215 10 7,146
BG Boys 0 #220 1 3,850
AL Girls 0 #226 2 4,141
BG Girls 0 #231 1 3,559
TW Boys 0 #231 11 7,111
MO Boys 0 #234 1 5,842
SG 0 #241 29 11,010
Canada Girls 2024 #245 41 2,795
EC Boys 0 #246 1 3,322
NA Boys 0 #246 8 6,830
AO Boys 0 #249 1 5,568
GR Girls 0 #249 1 6,293
MO Girls 0 #255 9 7,056
HR Boys 0 #256 4 3,997
JM Boys 0 #258 15 6,876
TW Girls 0 #260 17 8,139
JM Girls 0 #270 9 7,507
NG 0 #271 2 5,926
MY 0 #274 57 12,352
United States Boys 2024 #285 1,096 7,044
JP Boys 0 #285 13 7,909
HR Girls 0 #294 1 3,687
KZ Boys 0 #295 2 6,578
CZ Boys 0 #302 4 6,530
QA Girls 0 #307 10 15,378
SA 0 #310 3 10,560
CN Girls 0 #317 33 8,829
HK 0 #317 32 8,483
CN Boys 0 #325 7 9,639
DK Girls 0 #327 3 7,429
PE 0 #327 3 6,350
DK Boys 0 #332 1 7,401
KZ Girls 0 #332 1 5,862
GH Girls 0 #334 4 6,973
PL Boys 0 #340 1 6,459
PH Girls 0 #356 35 13,098
GH Boys 0 #359 3 8,138
MU Girls 0 #359 4 8,539
PL Girls 0 #363 2 5,096
MU Boys 0 #364 6 8,477
PH Boys 0 #365 19 11,440
France Boys 2021 #378 10 2,865
PT Boys 0 #380 2 7,951
ZA 0 #394 54 14,421
YE 0 #398 1 8,639
France Girls 2021 #399 7 3,185
CR Boys 0 #405 83 10,188
EG 0 #412 1 6,387
OM Girls 0 #424 1 15,987
MX 0 #444 2 8,339
SD Boys 0 #466 1 10,523
PT Girls 0 #471 1 7,952
AR Boys 0 #483 1 7,628
RU Girls 0 #483 16 11,913
CR Girls 0 #488 45 11,342
HK Boys 0 #489 39 12,905
RU Boys 0 #496 10 12,621
SG Girls 0 #496 91 18,916
GT Boys 0 #499 1 7,625
KW Girls 0 #504 12 19,177
PA Boys 0 #505 1 9,305
PS Girls 0 #514 10 10,981
HK Girls 0 #515 101 16,104
SG Boys 0 #516 184 17,960
PA Girls 0 #517 2 9,861
AE Girls 0 #533 21 20,968
GT Girls 0 #540 2 7,500
IR Girls 0 #545 1 8,334
PS Boys 0 #554 8 10,655
LY 0 #558 2 12,703
CM Girls 0 #560 1 11,671
IR Boys 0 #564 2 10,162
CM Boys 0 #571 5 12,054
BH 0 #585 3 17,937
BD Boys 0 #605 1 10,045
BO Boys 0 #622 1 9,244
IL Boys 0 #623 3 10,983
IL Girls 0 #637 9 11,648
BO Girls 0 #651 1 9,488
IN Girls 0 #652 3 13,121
Finland Boys 2026 #668 15 3,552
United States Girls 2024 #682 236 8,487
CL Boys 0 #695 6 13,390
IQ Boys 0 #696 2 13,071
IT 0 #702 13 4,183
QA Boys 0 #739 5 18,093
NG Girls 0 #764 23 15,093
ZA Girls 0 #797 361 25,928
KW Boys 0 #802 5 18,755
MY Girls 0 #817 178 24,821
Germany Girls 0 #823 16 4,949
MY Boys 0 #863 250 25,439
TN 0 #863 3 13,765
NG Boys 0 #887 65 16,906
NL Boys 0 #900 52 5,873
SA Girls 0 #904 32 25,931
CL Girls 0 #915 1 14,098
NL Girls 0 #915 41 5,933
OM Boys 0 #916 3 17,948
Spain Boys 0 #920 11 5,610
PE Boys 0 #923 4 14,506
Germany Boys 0 #925 28 5,697
EG Boys 0 #925 1 15,035
PE Girls 0 #930 14 14,861
Spain Girls 0 #965 19 5,561
MX Boys 0 #973 10 16,355
CO Boys 0 #979 3 15,656
ZA Boys 0 #980 199 25,619
EG Girls 0 #1,009 1 14,742
IN Boys 0 #1,037 3 16,750
AE Boys 0 #1,081 12 22,615
MA 0 #1,118 11 20,986
CO Girls 0 #1,145 8 16,140
MX Girls 0 #1,170 14 17,781
DZ 0 #1,229 6 20,130
TR 0 #1,249 6 19,440
IT Girls 0 #1,394 53 9,415
IT Boys 0 #1,412 60 10,046
SA Boys 0 #1,600 15 28,008

Casey is popular in 75 countries — most recent births per country:

Scotland, United Kingdom
Ireland
Canada
Ireland
France

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People also ask about Casey

Casey is a unisex name, given to both boys and girls.
Casey is a 2 syllable name, pronounced KAY-see (IPA: /ˈkeɪsi/).
Common nicknames and spelling variations include Kasey, Kacey, Kaci, Kacie, Kaycee and Kaycie.
Across languages, Casey has these equivalents: Ó Cathasaigh (Irish surname), Cathasach (Irish personal name).
Yes, very popular — Casey ranked #1 in Ireland in 2025, and appears in official birth registries across 9 countries.
Casey ranks highest in Ireland (#1 in 2025).
Yes — 6 notable people named Casey are in our database, including Casey Affleck (Actor), Casey Neistat (Actor), Casey Calvert (Actor).
Yes — at least 2 celebrity couples have chosen Casey for their child, including Stanley Kramer.