Foley

Foley is an Irish surname derived from the Irish Ó Foghladha, meaning "descendant of Foghlaidh". The byname Foghlaidh itself is rooted in the Irish word foghlaí, meaning "pirate, marauder, plunderer" — a reflection of the martial or possibly outlaw heritage associated with the original bearer. Anglicized in the 17th–18th centuries during English colonization, many Gaelic names were systematically simplified; in this case, the prefix Ó (indicating grandson or descendant) was absorbed and the inherent Gaelic sounds were recast as the now-familiar Foley.

The Foley surname is particularly concentrated in Munster, especially in counties Cork and Waterford, whence many bearers spread during and after the Great Famine (1845–1852). The 2010 United States Census records over 35,000 individuals bearing the surname, ranking it as the 600th most common surname in the country — clear evidence of the immense 19th‑ and 20th‑century Irish diaspora.

Notable bearers include Thomas Foley (1780–1852), a Royal Navy rear‑admiral who participated in the Glorious First of June and the Battle of the Nile; his cousin Rear‑Admiral Sir Thomas Foley (1757–1833) of Trafalgar‑fame; and contemporary judge James J. Foley (1937–2012). The name also describes Foley's, a category of Foley (or foley) artist who specialize in creating everyday sound effects for film and television — a usage that ultimately stems from actor Jack Foley (1891–1967), who pioneered the technique but whose surname coincidentally echoes his craft.

Lesser‑known places named Foley dot the American landscape: a city in Banner County, Alabama; the county seats of Benton County, Minnesota; and cities in Alaska, Montana, Colorado, Oklahoma and Kansas — reflecting the pervasiveness of settlers of Irish descent in small town America.

• Meaning: “descendant of Foghlaidh” (plunderer)
• Origin: Irish (Ó Foghladha)
• Type: surname (patronymic byname)
• Frequency: 600th most common surname in the USA (2010)
• Regions: Orignially Munster (Cork/Waterford), widespread USA; also various US municipalities named Foley