Grogan Family History
Grogan Name Meaning
reduced Anglicized form of Gaelic Ó Grúgáin ‘descendant of Grúgán’, a personal name from a diminutive of grúg ‘anger’, ‘fierceness’. reduced Anglicized form of Gaelic Ó Gruagáin ‘descendant of Gruagán’, a personal name from a diminutive of gruag ‘hair’. The patronymic form Mac Gruagáin (Anglicized McGrogan) is much rarer.
Source: Dictionary of American Family Names ©2013, Oxford University Press