Grogan Family History
Grogan Surname Meaning
Irish (Mayo and Offaly): shortened Anglicized form of Gaelic Ó Grúgáin ‘descendant of Grúgán’ a personal name from a diminutive of grúg ‘anger fierceness’.
The patronymic form Mac Gruagáin (Anglicized McGrogan) is much rarer.
Source: Dictionary of American Family Names 2nd edition, 2022
