Everything you need to know about the Irish surname O'Malley - its meaning, origins, interesting facts and famous people with the last name O'Malley.

Irish derivation: Ó Máille

Name meaning: A descendant of a follower of St John.

Counties associated with the name: Mayo

Coat of arms motto: “Terra Marique Potens” Powerful on Land and Sea.

Interesting facts:

 - Often referred to as “the Irish of the Irish”

 - The clan is heavily populated by sailors.

Some famous O'Malleys:

 - Grace O'Malley, (c.1530- c.1603, Irish noblewoman and chieftainess)

 - Martin O'Malley (1963-, American politician and 61st Governor of Maryland)

 - Ernie O'Malley (1897–1957, Irish Republican Army officer)

 - Sean O'Malley (born 1944-, Roman Catholic Cardinal)

 - Martin O'Malley (1939-, Canadian journalist)

 - Daragh O'Malley (born 1954-, Irish actor)

Here are some interesting facts about the Irish last name O'Malley, including its history, family crest, coat of arms, and famous clan members.