US Popularity Rank: 11696

Origin: Irish

Meaning: Thorny; Vigilant

Kacia is a feminine name that may be a fun play on the Greek Acacia. Reminiscent of the Acacia tree, Acacia bestows to Kacia the meaning "thorny." Yet despite such prickly connotations, Kacia may have more of a protective inclination than one of abject defensiveness. Closely linked to Kacey, Kacia's potential roots in the Irish Cathassach, reveal the secondary meaning of "vigilant" and, with it, the air of a watchful guardian.