MeaningCasey is a gender-neutral nameand is of Irish origin. It can be used for both girls and boys. It means vigilant. As a unisex name, this name is popular with both boys and girls. Pronounced as key-see, the name is currently in the top 100 of NameChef Most Popular Baby Names and in the top 500 of U.S birth chart of the year 2019. Variations of Casey include Casi, Casie.
Casey can be used for both boys and girls.
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