Dillon (surname)

Dillon is a surname with multiple origins, most commonly of Irish derivation. It is often an Anglicized form of the Gaelic surname Ó Duilleáin or Ó Dúlain. These Gaelic surnames are thought to derive from a personal name meaning "blind" or "lightning bolt."

In some cases, Dillon can also be of Norman origin. It is believed to have been introduced to Ireland following the Norman invasion in the 12th century. This Norman Dillon family were descended from the Anglo-Norman name "de Leon" (meaning "from Lyon"). The de Leon family held significant lands and influence in Ireland, particularly in County Westmeath and County Roscommon.

The surname Dillon is found primarily in Ireland and in countries with significant Irish diaspora populations, such as the United States, Canada, Australia, and the United Kingdom.

Notable people with the surname Dillon include:

• Famous Individuals: People who have made a significant impact in their field. (This section would be populated with specific names in a real encyclopedia entry.)

The Dillon name has a long and varied history, representing both Gaelic and Norman influences within Ireland. Genealogical research may be necessary to determine the specific origin of a particular Dillon family line.