O'Malley

Patronymic

Meaning

Descendant of Malley, derived from the Irish personal name Mael Maedoc or similar elements meaning 'devotee'.

Etymology

The Irish prefix 'O'' (from 'Ó') means 'descendant of,' combined with Malley from Irish personal name roots. The name has been documented in Irish records since medieval times.

About the O'Malley Surname

O'Malley is a prominent Irish patronymic surname with roots in medieval Connacht nobility. The family is particularly famous for Grace O'Malley, the legendary pirate queen of the 16th century.

Distribution & Frequency

Estimated 40,000 bearers in the United States #639 most common surname
Rare Common

Found throughout Ireland, particularly in Connacht, with significant diaspora in English-speaking countries.

O'Malley Surname Distribution

Geographic distribution based on Civil War military records.

Fewer
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Notable Bearers

People with the O'Malley Surname