Dalton is a surname of Norman origin found in Ireland and Britain and places where people from those backgrounds emigrated to.
The Hiberno-Norman D'Alton (later Dalton) family controlled an area of the Irish midlands following the Norman invasion and assimilation into Ireland.
An unrelated, prominent Norman-Irish gentry[1] family of the toponymic surname de Antōn arose in Co. Kilkenny in the late thirteenth century;[2] their surname was later corrupted to Daton or Dalton.
[3] Notable people with the surname include: