Updated June 9, 2019 Share: Boy name origins & meanings American : Enthusiastic Boy name variations Loudon Lowden Lowdon Lewdan Lewdin Lewdon Lowdan Lowdin Lowdyn How Popular Is The Name Louden Family name origins & meanings Scottish : habitational name from Loudoun near Cunningham in Ayrshire, named in Celtic as Lugūnon ‘fort of Lugus’ (see Lyon 2).Scottish and English (chiefly Northumbria) : variant of Lothian.