Guilfoyle Family History
Guilfoyle Surname Meaning
Irish (Tipperary Laois and Kilkenny): shortened Anglicized form of Gaelic Mac Giolla Phóil.
It is a patronymic from the personal name Giolla Phóil.
This name translates to ‘servant of (Saint) Paul’.
Source: Dictionary of American Family Names 2nd edition, 2022