The baby name Kayci is a Female name , 2 syllables long and is pronounced KAY-see (IPA: /ˈkeɪsi/).
The baby name Kayci is a Female name , 2 syllables long and is pronounced KAY-see (IPA: /ˈkeɪsi/).
Kayci is in Origin.
Kayci is a modern English given name, a phonetic respelling of Kacey/Casey. It ultimately derives from the Irish surname Ó Cathasaigh, from the Old Irish personal name Cathasach meaning “vigilant, watchful” (often interpreted as “alert” or “brave”). The Kay- opening also echoes Kay, a diminutive of Katherine, which sometimes influences the choice, but the primary lineage is the Casey family of names.
As a given name, Casey emerged in the English-speaking world in the late 19th century for boys, turning widely unisex by the mid-20th century; creative spellings such as Kacey, Kaci, and Kayci peaked in the 1980s–1990s and remain uncommon but familiar today. Variants and related forms include Casey, Kasey, Kacey, Kaci, Kacie, Kaycie, Kaycee, and the initials-style KC. Kayci retains the upbeat, approachable sound of Casey while offering a distinctive look, combining surname heritage with modern styling.
Based on birth registration data from national statistics agencies.
| Country | Gender | Year | Rank | Born | of |
|---|---|---|---|---|---|
| MO | Girls | 0 | #263 | 1 | 7,056 |
| JM | Girls | 0 | #276 | 3 | 7,507 |
| Canada | Girls | 2010 | #302 | 6 | 2,861 |
| ZA | 0 | #474 | 1 | 14,421 | |
| PA | Girls | 0 | #518 | 1 | 9,861 |
| AE | Girls | 0 | #597 | 1 | 20,968 |
| QA | Boys | 0 | #743 | 1 | 18,093 |
| NG | Girls | 0 | #826 | 1 | 15,093 |
| United States | Girls | 2024 | #891 | 26 | 8,487 |
| United States | Boys | 2023 | #894 | 5 | 7,053 |
| PE | Girls | 0 | #1,010 | 1 | 14,861 |
| ZA | Girls | 0 | #1,236 | 1 | 25,928 |
| ZA | Boys | 0 | #1,272 | 1 | 25,619 |
Kayci is popular in 10 countries — most recent births per country:
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