Rising since 2015, #320 for boys today.
Popularity of Casey since 1888
Babies named Casey per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls | Boys |
|---|---|---|
| 1880s | 0 | 6 |
| 1890s | 0 | 37 |
| 1900s | 0 | 89 |
| 1910s | 0 | 444 |
| 1920s | 10 | 347 |
| 1930s | 0 | 277 |
| 1940s | 48 | 571 |
| 1950s | 431 | 2,656 |
| 1960s | 959 | 4,723 |
| 1970s | 8,646 | 18,987 |
| 1980s | 27,918 | 35,968 |
| 1990s | 25,901 | 29,253 |
| 2000s | 9,121 | 12,261 |
| 2010s | 3,591 | 5,582 |
| 2020s | 1,475 | 5,474 |
Meaning & origin
Casey is a unisex name of Irish origin that entered the U.S. top 1,000 in 1888 and reached its peak rank in 1988. Since 2015, its popularity has been rising, though it remains at a modest rank of 320 in 2025. About 1 in every 1,593 newborns receives the name, which is most common in Delaware, New Hampshire, and West Virginia. Its Irish roots derive from the surname Ó Cathasaigh, and a long history of use among Irish Americans has helped it endure as a versatile, modern-feeling choice. The name's simple two-syllable sound and spelling have made it a staple for parents seeking a name that works equally well for any gender.
Casey is an anglicized form of the Irish surname Ó Cathasaigh, meaning 'descendant of Cathasach,' which itself derives from cath 'battle' and the suffix -asach. The name was used as a given name in Ireland and among the Irish diaspora. It gained broader popularity in the United States in the late 20th century, especially after the rise of the unisex name trend.
Where Casey is most popular
Births per 100,000 boys by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.
“Casey” around the world
Where Casey lands in the latest official birth statistics abroad, matched to the U.S. spelling.
France
10
babies in 2024
Ireland
47
babies in 2025
New Zealand
20
babies in 2025
Quebec
13
babies in 2025
Sources: INSEE (France) · CSO Ireland (Ireland) · NZ Dept of Internal Affairs (New Zealand) · Retraite Québec (Quebec).
Nicknames & variants
Nicknames: Case
Sibling names for Casey
Names that share Casey's style, for a brother or sister.
Sisters: Riley, Morgan, Quinn, Shannon, Kerry, Jamie, Jessie, Tracy, Andi, Andie, Codi, Cori, Corrie, Darci, Karey, Kary, Keely, Kelley, Kerrie, Reilly, Sydni, Jacy, Keelie, Kelcey, Kelle, Kerrigan, Kinzie, Korie, Malory, Stacee, Tierney, Andee, Calley, Cammi, Coree, Corri, Cydnee, Dacey, Daley, Danie, Jaimi, Jamye, Jordann, Kassey, Kaysee, Kealy, Keeli, Keilly, Kellsie, Mckensie, Scotti, Shanley, Sydnei, Tacy, Taylore, Jasey, Jordyne, Kaydi, Keiley, Kelsay, Kieley, Kilie, Murphie, Sidni, Tacey, Bassy, Bradee, Dacie, Jaimey, Jordane, Jury, Kery, Lacye, Taci
Brothers: Ryan, Sean, Conor, Patrick, Brady, Carey, Chandler, Cody, Cory, Jordan, Coty, Jordy, Kenny, Kirby, Korey, Tory, Codey, Corry, Curry, Dustyn, Torey, Bradey, Bucky, Renny, Arjay, Cully, Korry, Stace, Tieler, Casin, Cotey, Dempsy, Hilery, Tryson
Names like Casey
Names whose popularity has moved with Casey's over the last 50 years.
