US Popularity Rank: 1376

Origin: Irish

Meaning: vigilant

Kacey is a gender-neutral baby name of Irish origin. Kacey derives from the Irish Gaelic surname Ó Cathasaigh and the Old Irish name Cathassach, meaning “vigilant.” Though Kacey originated on Irish shores, this Anglicized name has seen a few variations popping up from time to time, like Casey, Case, and Kaycee. Despite these variants, Kacey is definitely a name to keep an eye out for in countries like the United States, Canada, and England. No matter where baby goes, baby Kacey is sure to be ready for every adventure.