Kaci: a female name of Irish (Gaelic) origin meaning "This name derives from the Middle Irish Gaelic genitive form “Cathasaig,” meaning “vigilant, watchful,” from the surname “Ó Cathasaig".It derives from the Irish (Gaelic) word "Cathasaig > CATHASACH".
The name Kaci carries a rich history rooted in Irish (Gaelic) culture. Derived from "Cathasaig > CATHASACH", this feminine name embodies the essence of This name derives from the Middle Irish Gaelic genitive form “Cathasaig,” meaning “vigilant, watchful,” from the surname “Ó Cathasaig. Its linguistic journey through centuries reflects the cultural values and traditions of Irish (Gaelic)-speaking communities.
Quick Facts About Kaci
Quick facts about Kaci
Origin
Irish (Gaelic)
Gender
Girl name
Popularity
Moderately popular
Researched by Name Doctor Linguistics Team
Our names are verified by professional linguists with expertise in etymology and cultural naming traditions.
Last reviewed: November 2025
Meaning
This name derives from the Middle Irish Gaelic genitive form “Cathasaig,” meaning “vigilant, watchful,” from the surname “Ó Cathasaig.” In turn, the name means “descendant of Cathasach. The English version “Casey” was the 326th most popular name for boys born in the United States in 2007 and the 458th most popular name for girls. It ranked among the top 200 names for both sexes in the 1990s.
Etymology & Details
Name Root
Cathasaig > CATHASACH
How to Pronounce Kaci
Kaci is pronounced /ˈkeɪsi/
Step-by-step pronunciation guide:
Break it into syllables: Kac-i
Say it like: "KEEEHSEE"
Practice saying it naturally a few times
✓Pronunciation verified by linguistic sources
Usage & Popularity
Kaci is predominantly used in english speaking communities, where it maintains strong cultural connections and traditional significance.
english
Frequently Asked Questions About Kaci
What does the name Kaci mean?
Kaci means "This name derives from the Middle Irish Gaelic genitive form “Cathasaig,” meaning “vigilant, watchful,” from the surname “Ó Cathasaig.” In turn, the name means “descendant of Cathasach. The English version “Casey” was the 326th most popular name for boys born in the United States in 2007 and the 458th most popular name for girls. It ranked among the top 200 names for both sexes in the 1990s.". The name comes from Cathasaig > CATHASACH. This irish (gaelic) name has been passed down through generations, carrying its meaning across different cultures and time periods. Parents who choose Kaci for girls often connect with the name's meaning of "This name derives from the Middle Irish Gaelic genitive form “Cathasaig,” meaning “vigilant, watchful,” from the surname “Ó Cathasaig.” In turn, the name means “descendant of Cathasach. The English version “Casey” was the 326th most popular name for boys born in the United States in 2007 and the 458th most popular name for girls. It ranked among the top 200 names for both sexes in the 1990s." as a quality they hope to see in their child. While not the most common choice, Kaci's meaningful roots have given it staying power among parents looking for a name with substance.
What is the origin of the name Kaci?
Kaci is a irish (gaelic) name. The name traces back to Cathasaig > CATHASACH. The name remains closely tied to english naming traditions while occasionally appearing in other cultures. The irish (gaelic) meaning "This name derives from the Middle Irish Gaelic genitive form “Cathasaig,” meaning “vigilant, watchful,” from the surname “Ó Cathasaig.” In turn, the name means “descendant of Cathasach. The English version “Casey” was the 326th most popular name for boys born in the United States in 2007 and the 458th most popular name for girls. It ranked among the top 200 names for both sexes in the 1990s." reflects values important in the culture where this name first appeared.
Is Kaci a boy or girl name?
Kaci is a girl's name. This traditionally feminine name has been chosen by parents for daughters across many cultures and time periods. In irish (gaelic) tradition, Kaci has historically been given to girls. The meaning "This name derives from the Middle Irish Gaelic genitive form “Cathasaig,” meaning “vigilant, watchful,” from the surname “Ó Cathasaig.” In turn, the name means “descendant of Cathasach. The English version “Casey” was the 326th most popular name for boys born in the United States in 2007 and the 458th most popular name for girls. It ranked among the top 200 names for both sexes in the 1990s." carries well for a daughter, giving the name lasting appeal.
How do you pronounce Kaci?
Kaci is pronounced "/ˈkeɪsi/". This pronunciation follows ga language patterns. As a single-syllable name, Kaci is quick to say and easy to call out. If you're unfamiliar with irish (gaelic) names, listening to a native speaker say Kaci can help you catch the right rhythm and emphasis.
How popular is the name Kaci?
Kaci is somewhat common, familiar to most people. With moderate popularity, Kaci offers familiarity without being everywhere. It's the kind of name people recognize but don't hear every day. Kaci's popularity may vary between irish (gaelic) communities and the broader population, where naming trends differ. The name's meaning of "This name derives from the Middle Irish Gaelic genitive form “Cathasaig,” meaning “vigilant, watchful,” from the surname “Ó Cathasaig.” In turn, the name means “descendant of Cathasach. The English version “Casey” was the 326th most popular name for boys born in the United States in 2007 and the 458th most popular name for girls. It ranked among the top 200 names for both sexes in the 1990s." likely influences its appeal, as parents often choose names that express values or hopes for their children. Among girls' names, Kaci holds its own, appealing to parents who value distinctive options.
Where is the name Kaci commonly used?
Kaci is used primarily in english naming traditions. Though irish (gaelic) in origin, Kaci found a home in other cultures where it resonated with local naming preferences. The meaning "This name derives from the Middle Irish Gaelic genitive form “Cathasaig,” meaning “vigilant, watchful,” from the surname “Ó Cathasaig.” In turn, the name means “descendant of Cathasach. The English version “Casey” was the 326th most popular name for boys born in the United States in 2007 and the 458th most popular name for girls. It ranked among the top 200 names for both sexes in the 1990s." carries universal appeal, helping explain why different cultures adopted Kaci into their naming traditions. A child named Kaci will likely find their name recognized in multiple countries, which can be an advantage for families with international connections or who value global accessibility. Across these cultures, Kaci is given to girls, maintaining consistent gender association.
Sources: Etymology verified through linguistic research including Oxford Dictionary of First Names, Behind the Name, and academic etymology databases.