McCoy is an Anglicized form of the Scottish surname MacAoidh, which is derived from the Gaelic personal name Aodh (pronounced "ee").
Meaning:
"Son of Aodh"
Origin:
Scotland: MacAoidh originated in the Scottish Highlands, particularly in the clan Ranald of Moidart (Clann Raghnaill). The name is most common in the counties of Inverness-shire and Argyllshire.
Ireland: A variant form of MacAoidh, McCoy, also exists in Ireland, but it is less common there than in Scotland.
Distribution:
Scotland: Most common in the Highlands and Western Isles.
Ireland: Found throughout the country but more prevalent in the north.
United States: A common surname in the United States, particularly in the Appalachian Mountains and the South. This is due to the migration of Scottish and Irish immigrants to the New World.
Notable People with the Surname McCoy:
Elmer McCoy, American writer known for his novel "They Shoot Horses, Don't They?"
George McCoy, American baseball player and manager
Horace McCoy, American writer known for his novel "They Shoot Horses, Don't They?"