Acacia tree; thorny
Kacia is a rare diminutive or variant of the name Acacia, which is derived from the Greek word for the flowering tree. In botanical terms, the name refers to the 'thorny' nature of the plant, but it is also associated with immortality and resurrection in various cultures.
Less common today
Kacia isn't in the latest US Top 1000. It last peaked at #5,487 in 1990.
US births per 5-year period, 1990βpresent (SSA data).