US Popularity Rank: 15680

Origin: Irish

Meaning: Watchful, vigilant

Baby is sure to be wide-eyed and curious with a name like Kaysi. An alternative spelling to Casey, Kaysi is a gender-neutral moniker with Irish roots. Originally a surname, Ó Cathasaigh, and deriving from the given name Cathassach, it translates to “watchful” or “vigilant.” Being eagle-eyed and attentive are wonderful traits to have. With a name like Kaysi, your mindful little one will certainly be aware of the world around them.