In arts and media •
Brian Tierney (medievalist) (1922–2019), historian and medievalist •
Mark Aloysius Tierney (1795–1862), English Catholic historian •
Patrick Lennox Tierney (1914–2015), art historian, specialist on Japan •
Tom Tierney (artist) (1928–2014), American paper doll artist
Film, television, and theatre •
Eileen Wilson Powell (1894–1942), American actress born Julia Mary Tierney •
Gene Tierney (1920–1991), American stage and film actress • Gerard "Jerry" Tierney (1924–1985), American actor known as
Scott Brady •
Jacob Tierney (born 1979), Canadian actor, film director and writer •
Kevin Tierney (1950–2018), Canadian film producer •
Lawrence Tierney (1919–2002), Irish-American actor •
Malcolm Tierney (1938–2014), British actor •
Matt Tierney, American sound designer for theatre •
Maura Tierney (born 1965), American actress
In music •
Andrew Tierney (born 1974), Australian singer-songwriter of band Human nature •
Garrett Tierney, bass guitar and vocals in band 'brand new' •
Harry Tierney (1890–1965), American composer of musical theatre •
Michael Tierney (musician) (born 1977), member of Australian band Human Nature •
Mick Pyro, Irish musician, born Michael Tierney •
Vivian Tierney (born 1957), English operatic soprano
In other media •
Gerard Tierney (1924–1979), Irish bi-lingual radio broadcaster •
John Tierney (journalist) (born 1953), American journalist •
Matthew Tierney (poet) (born 1970), Canadian poet •
Patrick Tierney (author), American writer and mountaineer •
Richard L. Tierney (1936–2022), American writer •
Robert J. Tierney, Australian linguist and author •
Ronald Tierney (1944–2017), American newspaper editor and author •
Tierney Gearon (born 1963), American photographer
Government, law, and politics •
Darren Tierney, British civil servant, Permanent Secretary of the
Office for National Statistics •
Frank A. Tierney, Deputy Commissioner under the Workmen's Compensation act •
Gayle Tierney, Australian politician, Labor party •
George Tierney (1761–1830), English Whig politician •
James Tierney (politician) (born 1947), Attorney General of Maine •
James Tierney Jr. American republican politician, Representative from New Hampshire •
John Tierney (Australian politician) (born 1946), Liberal senator •
John Tierney (Irish politician) (born 1951) •
John F. Tierney (born 1951), United States Representative from Massachusetts •
John H. Tierney (1832–1907), American politician and farmer •
John J. Tierney (1926–2005), American Boston city council member •
Joseph M. Tierney (1941–2009), American politician, father of Maura Tierney •
Michael Tierney (politician) (1894–1975), professor at University College Dublin •
Patrick Tierney (Irish politician) (1904–1990), Irish Labour party politician •
Peter Tierney Murrell (born 1964), CEO of the Scottish National Party •
Sir Edward Tierney, 2nd Baronet (June 1780–11 May 1856) Irish lawyer and landowner •
Susan Tierney (born 1951), American academic and Government policy administrator •
Sydney Tierney (1923–2010), British Labour Party politician •
Thomas Tierney (mayor) (1916–1998), Irish mayor of Galway, Ireland •
Thomas M. Tierney (1919–2001), American administrator of the Bureau of Health Insurance •
Tim Tierney (born 1974), Canadian councillor and politician •
William Tierney Robarts (1786–1820), British politician and businessman •
William L. Tierney (1876–1958), Democratic member of the US House of Representatives
In sport In football •
Chris Tierney (soccer) (born 1986), American footballer •
Fergus Tierney (born 2003), Scottish born Malaysian footballer, Johor Darul Ta'zim III F.C. •
Francis Tierney (born 1975), English footballer with Doncaster Rovers •
Gary Tierney (born 1986), Scottish football (soccer) player •
Grant Tierney (born 1961), Scottish footballer •
Jim Tierney (footballer) (born 1940), Scottish footballer •
Kieran Tierney (born 1997), footballer for Celtic Glasgow, Arsenal •
Lawrie Tierney (1959–2011), Scottish football (soccer) player •
Marc Tierney (born 1985), English footballer (soccer) •
Martin Tierney (born 1966), Scottish footballer (Ayr United) and TV pundit •
Neil Tierney, Australian rugby league footballer •
Paul Tierney (footballer) (born 1982 in England), Irish football (soccer) player •
Ross Tierney (born 2001), Irish footballer •
Ryan Tierney, Scottish footballer •
Sam Tierney (born 1998), English footballer for Leicester City •
Tommy Tierney, English footballer
In Gaelic football and hurling •
Benny Tierney, Irish Gaelic goalkeeper and sports journalist •
David Tierney (born 1979), Irish hurler and Gaelic footballer •
John Tierney (Gaelic footballer) (born 1982), Gaelic footballer •
Matthew Tierney (Gaelic footballer), Irish Gaelic footballer •
Michael Tierney (Gaelic footballer) (born 1986), from Laois in Ireland •
Noel Tierney (born 1942), Irish Gaelic footballer and sportsperson •
Tom Tierney (Galway hurler) (born 1983), Irish hurler and manager •
Tom Tierney (Kilkenny hurler) (1894–1984), Irish hurler •
Tomás Tierney (born 1961), Irish Gaelic footballer
In rugby •
Abi Tierney, British, appointed as the first female chief executive of the Welsh Rugby Union in 2023 •
Dylan Tierney-Martin (born 1999), Irish rugby union player •
Lewis Tierney (born 1994), Scottish international rugby league player •
Matt Tierney (rugby union) (born 1996), Canadian Rugby union player •
Melbourne Tierney (1923–2014), Welsh rugby league player •
Paul Tierney (rugby league) (1919–1973), Australian rugby league footballer •
Tom Tierney (rugby union), Irish rugby union player
In other sports •
Bill Tierney (baseball) (1858–1898), with Cincinnati red stockings •
Bill Tierney (born 1952) American lacrosse coach •
Blake Tierney (born 2002) Canadian competitive swimmer •
Chris Tierney (ice hockey) (born 1994), Canadian hockey player •
Cotton Tierney (1894–1953), American baseball second and third baseman •
Erin Tierney (born 1970), Cook Islander female Olympic sprinter •
Festus Tierney (1899–1973), American NFL guard with Toledo Maroons •
Jack Tierney (1893–1968), American basketball player and coach •
Jade Tierney (born 2004), Cook Islander Olympic canoeist •
James Tierney (footballer) (1878–1959), Australian rules footballer •
Joe Tierney (1903–2004), American sprinter at the 1928 Olympics •
John Tierney (cricketer) (born 1964), English cricketer •
John Tierney (rower), American rower •
Meghan Tierney, US Olympic snowboarder •
Paul Tierney (hurler) (born 1982), Irish hurler and ultrarunner •
Shea Tierney (born 1986), American football and coach for New York giants •
Tim Tierney (American football) (1943–2012), American football player and coach •
Trevor Tierney, American lacrosse goaltender and coach
In business •
Brian Tierney (born 1957), American businessman and newspaper publisher • Michael Tierney (born 1989), American businessman, founder of
Stuffed Puffs •
Paul E. Tierney (born 1943), American business professor and venture capitalist •
Thomas J. Tierney (born 1954), business executive, chairman of eBay
In education •
Alison J. Tierney (born 1948), British nursing theorist and researcher •
Charles Rust-Tierney (born 1955), American ACLU chapter president •
James Tierney (politician) (born 1947), Attorney General of Maine •
Keith Tierney, Canadian scientist and academic •
Myles Tierney (1937–2017), American mathematician and professor •
Robert J. Tierney, Dean Emeritus at the University of British Columbia •
T. F. Tierney (born 1951), American urbanist, network theorist and educator •
William G. Tierney, American scholar in higher education and author
In religion •
Cornelius Tierney (1872–1931), Irish priest and missionary •
Gilbert Ó Tigernaig, bishop of Annaghdown •
Michael Tierney (bishop) (1839–1908), Roman Catholic bishop •
Tigernach of Clones (died 549), Irish saint, patron •
Tigernach Ua Braín (died 1088), Abbott of Clonmacnoise
In science •
James Edward Tierney Aitchison (1835–1898), Scottish surgeon and botanist •
Jessica Tierney (born 1982), American paleoclimatologist •
Luke Tierney, American statistician and computer scientist •
Matthew John Tierney (1776–1845), Irish surgeon and royal physician
In other fields •
Emiko Ohnuki-Tierney (born 1934), Japanese-American anthropologist •
Flann Ó Tighearnaigh (died 1273), Gaelic Irish lord •
Paul Tierney (referee) (born 1980), English football referee •
Tigernach mac Fócartai (died 865), king of
Lagore •
William Tierney Clark (1783–1852), English civil engineer of bridges == Fictional characters ==