Shannon Family History
Shannon Name Meaning
Irish:: shortened form of Shanahan . shortened Anglicized form of Gaelic Ó Seanáin ‘descendant of Seanán’ a personal name based on a pet form of seán ‘old’. This Irish surname became established in Scotland in the 14th century. in County Clare a shortened Anglicized form of Mac Giolla tSeanáin ‘son of the servant of St. Seanán’. In the Irish midlands Leonard and Nugent have been adopted as equivalents of this name.
Source: Dictionary of American Family Names 2nd edition, 2022