Caisey

Caisey is a feminine name that represents a modern variant spelling of Casey, which originated as an Irish surname derived from 'Cathasaigh,' meaning 'vigilant' or 'watchful.' This particular spelling with 'ai' rather than the traditional 'a' gives the name a more feminine appearance while maintaining the familiar pronunciation. The name gained popularity as a given name in the mid-20th century and has been used for both genders, though this spelling tends to be more associated with girls. Caisey offers the friendly, approachable quality of Casey with a distinctive twist in its orthography. While less common than the standard spelling, Caisey appeals to parents seeking a name with Celtic roots that balances familiarity with uniqueness.

Pronounced KAY-see.

As of October 2026, Caisey ranked #12705 in US births in 1998 SSA, peaked at #8149 in 1993.