Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
LOUGHLIN
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
The ancient Britons or Welsh called the Baltic Sea Lychlyn, and the Scandinavian sea-pirates who infested the coasts of Britain received the same appellation. Norway is called Llychlyn.
Origin: Celtic
Region of origin: British Isles
Country of origin: Ireland
Religion of origin: Christian
Language of origin: Gaelic