Cassey is a girl name with roots in Irish culture. A variant of Casey, from the Irish surname Ó Cathasaigh, from 'cathasach', 'vigilant, watchful'.
The numerology number for Cassey is 7, reflecting the personality traits and characteristics associated with this name.
Origin : irish
Gender : girl
Numerology : 7
Syllables : 2
Last updated 21 October 2026 · How we research names · Report a mistake
In numerology, the name Cassey reduces to the number 7, which is most often linked to introspection, wisdom, spirituality. A person carrying this vibration is typically thoughtful and reflective - comfortable with solitude, drawn to deeper questions, and often described as an old soul.
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