Kacy \k(a)-cy\ as a girl's name (also used as boy's name Kacy), is a variant of Casey (Irish, Gaelic) and Kacie (American), and the meaning of Kacy is "alert, watchful".

The baby name Kacy sounds like Kacey, Kacye, Kaci, Kace, Cacy and Kasy. Other similar baby names are Kady, Kaly, Dacy, Kay, Katy, Jacy, Kary, Lacy, Macy and Tacy.