Watchful, alert, or thorny
Kacy is a phonetic spelling variant of Casey, which is derived from the Irish surname Ó Cathasaigh, meaning 'watchful' or 'vigilant'. It is also occasionally linked to the initials K.C. or as a diminutive of the name Acacia, which refers to a thorny tree. In the United States, this specific spelling peaked in popularity during the late 20th century.
Less common today
Kacy isn't in the latest US Top 1000. It last peaked at #961 in 1990.
Gymnast and professional wrestler, first woman to complete the American Ninja Warrior course
American singer-songwriter and former model
Celebrity fitness trainer and life coach
US births per 5-year period, 1990–present (SSA data).
