Tiernan

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title: "Tiernan" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public topic_path: "uncategorized" source: "https://en.wikipedia.org/wiki/Tiernan" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

Tiernan ( or Ó Tiarnáin; also spelled Tirnan, Tierney) is an Irish surname. Tiernan is also an anglicisation of Tiarnán, a given name derived from the Irish word tiarna "lord" + -án (diminutive suffix).

As surname

Notable people with the surname Tiernan include:

Andrew Tiernan (born 1965), English actor
Bob Tiernan, American politician
Caleb Tiernan (born 2003), American football player
Cate Tiernan (born 1961), pen name of Gabrielle Charbonnet, American author
Dan Tiernan (born 1996), English stand-up comedian
Fergus Tiernan (born 1982), Scottish football midfielder
Frances Christine Fisher Tiernan (1846–1920), pen name "Christian Reid", American novelist, author
Greg Tiernan (born 1965), Irish-born-Canadian-based animator, director, voice actor
Jonathan Tiernan-Locke (born 1984), British cyclist
Mary Spear Nicholas Tiernan (1835–1891), American writer
Mike Tiernan (1867–1918), American professional baseball player
Patrick Tiernan (born 1994), Australian runner
Robert Tiernan (1929–2014), American lawyer, politician
Sonja Tiernan, Irish historian
Tommy Tiernan (born 1969), Irish comedian, actor, writer, presenter

As forename

Notable people with the forename Tiernan include:

Tiernan Brady, Irish-Australian LGBT rights campaigner
Tiernan Killeen (born 2003), Irish hurler
Tiernan McCann (born 1991), Irish Gaelic footballer
Tiernan O'Halloran (born 1991), Irish rugby player

References

https://www.allfamilycrests.com/t/mctiernan-family-crest-coat-of-arms.shtml

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