Logan Family History

Scottish and northern Irish: habitational name from any of the places in Scotland so called, principally that near Auchinleck. They all get their names from Gaelic lagan, a diminutive of lag ‘hollow’. Irish: reduced Anglicized form of Gaelic Ó Leocháin ‘descendant of Leochán’ (earlier spelled Lothchán), a personal name of unexplained origin.

Source: Dictionary of American Family Names ©2013, Oxford University Press