Kacy

Irish
"brave in battle"

Kacy Origin and Meaning

The name Kacy is a boy's name.

Kacy as a masculine name represents a modern usage of what has traditionally been a unisex or feminine name. It likely derived as a variant spelling of Casey, which originated from an Irish surname meaning 'vigilant' or 'watchful.' The spelling variation with a 'K' gives the name a more contemporary feel. While Casey has been used for both boys and girls, Kacy for males is considerably less common. The name peaked in popularity in the 1980s and 1990s but remains relatively uncommon for boys. Kacy has a friendly, approachable sound with its short, two-syllable structure, and the 'y' ending maintains a youthful quality that can transition well into adulthood.