Flanagan is a common surname of Irish origin and an Anglicised version of the Irish name Ó Flannagáin which is derived from the word "flann" meaning 'red' or 'ruddy'.
Flanagan is a common surname of Irish origin and an Anglicised version of the Irish name Ó Flannagáin which is derived from the word "flann" meaning 'red' or 'ruddy'.