Likely from an Irish surname form, possibly related to Ó Cathasaigh, meaning descendant of the vigilant or watchful one.
Caffey is likely connected to an Irish surname form, possibly Ó Cathasaigh, associated with the vigilant or watchful one. That kind of ancestral root is common in Irish naming traditions, where family names often began as descriptors of character or role before becoming hereditary.
Caffey therefore carries the quiet authority of a surname that has been reshaped into a given name. As a personal name, Caffey feels friendly, informal, and slightly rustic, with a soft unpretentious quality. It does not sound heavily historical, but it does have the layered feel of names that have traveled from family line into broader use. The watchful meaning gives it an understated strength, while the sound keeps it approachable and light.