Watchful, alert, or from the forest
Kaisey is a modern phonetic variant of the Irish name Casey, which is derived from the Gaelic surname Ó Cathasaigh, meaning 'descendant of Cathasach' (watchful). It may also be interpreted as a diminutive form of the name Katherine or a variation of the English surname-name Kay.
About 12 girls were named Kaisey in 2025.
US births per 5-year period, 1990–present (SSA data).
