The name kasey is of irish origin and is derived from the gaelic name cathasaigh, meaning vigilant or watchful. it is a unisex name that can be given to both boys and girls. Kasey as a girls' name (also used less commonly as boys' name kasey) is pronounced kay-see. It is of american origin, and the meaning of kasey is alert;

Kasey is a gender-neutral name of irish origin, inspired by the surnames casey and ó cathasaigh. Kasey means “watchful” or “vigilant” for the curious tot who can’t take their eyes off of you. Kasey is a unisex given name, nickname and ring name which may refer to: