Vigilant or watchful
Kacey is a modern phonetic spelling of the Irish surname Casey, which is derived from the Gaelic 'O Cathasaigh' meaning 'descendant of Cathasach'. The root word 'cathasach' translates to vigilant or watchful. While historically a surname, it gained popularity as a given name in the late 20th century for both boys and girls.
About 211 girls were named Kacey in 2025.
US births per 5-year period, 1990–present (SSA data).
Grammy-winning country music singer-songwriter
English actress known for Resident Evil: Afterlife
Olympic gold medalist ice hockey player
Main character and lead singer of Gravity 5 · How to Rock
The same feel as Kacey — far less common.
Hidden gems that stand out.
