Low valley or from the loud hill
Loudon is a surname-derived name with roots in Scottish and English geography. It most likely refers to a location such as Loudoun in Ayrshire, Scotland, which is thought to mean 'low valley' or 'loud hill' depending on the specific Celtic or Old English elements used.
Less common today
Loudon isn't in the latest US Top 1000. It last peaked at #6,275 in 2010.
US births per 5-year period, 1990–present (SSA data).
Grammy-winning folk singer-songwriter
American writer and Life magazine editor
The protagonist played by Griffin Dunne · Who's That Girl
