Manning Family

Irish (Cork and Kerry): adopted as an English equivalent of Gaelic Ó Mainnín ‘descendant of Mainnín’ probably an assimilated form of Mainchín a diminutive of manach ‘monk’. This is the name of a chieftain family in Connacht. It is sometimes pronounced Ó Maingín and Anglicized as Mangan . English: from a Middle English survival of the Old English personal name Manning. North German and Dutch: habitational name from a farm so named once in possession of a certain Manno (see Mann ) and his kin. American shortened and altered form of Finnish Manninen .

Source: Dictionary of American Family Names 2nd edition, 2022