Daly is an Irish surname, derived from the Gaelic Ó Dálaigh. Notable people with the surname include:

Entertainment and arts

• Andy Daly (born 1971), American actor, writer, and comedian
• Augustin Daly (1838–1899), American theatrical manager and playwright
• Candice Daly (1963–2004), American actress
• Carson Daly, television personality
• Dan Daly (1864–1904), American comic actor
• Eileen Daly, English actress and singer
• Gary Daly, English songwriter and vocalist
• James Daly (actor) (1918–1978), American actor
• Joel Daly (1934–2020), American news anchor and journalist
• John Charles Daly (1914–1991), American journalist game show host and radio personality
• Mark Daly, British actor
• Mike Daly, American alt-country and rock and roll singer/songwriter
• Norman Daly (1911-2008), American artist
• Peter-Hugo Daly, actor and drummer
• Richard Daly (1758–1813), Irish actor and theatre manager
• Scott Daly (born 1994), American football player
• Tess Daly (born 1969), English television presenter
• Tim Daly, American theatre, screen and voice actor, director and producer
• Tyne Daly, American actress
• William Merrigan Daly (1887–1936), known as "Bill Daly", Broadway songwriter and conductor

Sports

• Aidan Daly, New Zealand basketball player
• Aisling Daly (born 1987), Irish mixed martial arts fighter
• Anthony Daly (hurler), Irish
• Bill Daly, Canadian deputy commissioner of hockey
• Charles Dudley Daly, West Point coach, founder of AFCA
• Chuck Daly (1930–2009), American basketball head coach
• Derek Daly, Irish racing driver
• Elliot Daly, (born 1992), English rugby player
• Fred Daly (golfer) (1911–1990), Northern Irish golfer
• Gerry Daly, Irish football player
• Jason Daly, Westmeath Gaelic footballer
• Joe Daly (footballer), English footballer
• John Daly (athlete), Irish steeplechase athlete
• John Daly (golfer), professional golfer
• Jon Daly (footballer), Irish association football player
• Keevil Daly, (1923–2011), Guyanese-Canadian weightlifter
• Matt Daly,(born 1989) Scottish Professional Wrestler
• Matt Daley (born 1983), English field hockey player
• Matty Daly (born 2001), English footballer player
• Rachel Daly (born 1991), English association football player
• Robert Daly, Irish sprinter
• Tom Daly (1891–1946), Canadian baseball player
• Wes Daly, English football player

Politics and government

• Anthony Daly, Irish agrarian agitator
• Brendan Daly (politician) (1940–2023), Irish Fianna Fáil Party politician
• Chris Daly, American politician, San Francisco, California
• Clare Daly, Irish socialist politician and trade union activist
• Denis Daly (1747–1792), Irish landowner and politician
• Dominick Daly (1798–1868), British Governor of Prince Edward Island, Tobago and South Australia
• Edward Daly (Irish revolutionary) (1891–1916), Irish nationalist
• Edward Daly (mayor) (1926–1993), councillor and mayor of Newham, London
• Fred Daly (politician) (1913–1995), Australian Labor Party politician
• James Daly (activist) (1838-1910) Irish nationalist activist
• James Daly, 1st Baron Dunsandle and Clanconal (1782–1847), Irish baron and politician
• J. Burrwood Daly (1872–1939), US congressman
• John Daly (Fenian) (1845-1916), Irish nationalist
• John Corry Wilson Daly (1796–1878), Canadian politician, businessperson and militia officer
• John Lawrence Daly (1943–2004), self-declared "greenhouse skeptic"
• Lawrence Joseph Sarsfield Daly (1912–1979), fringe American politician
• Malachy Bowes Daly (1836–1920), Canadian politician
• Margaret Daly, served in the European Parliament
• Mark Daly (born 1973), Irish politician
• Teresa Daly, American politician
• Thomas Mayne Daly Sr. (1827–1885), Canadian businessman and political figure
• Thomas Mayne Daly (1852–1911), Canadian politician
• William Davis Daly (1851–1900), American Democratic Party politician who represented New Jersey
• Will H. Daly (1869–1924), American labor leader, progressive politician and businessman

Journalism and literature

• Brian Daly, Irish news journalist
• James Daly (journalist), American journalist in San Francisco
• John Daly (journalist), American newspaper and television journalist
• Maureen Daly (1921–2006), American novelist
• Wally K. Daly, English writer for television and radio

Academics and science

• Herman Daly, ecological economist and professor
• Marie Maynard Daly, American biochemist
• Martin Daly, Canadian psychology professor
• Mary Daly (sociologist), Irish sociologist and academic
• Mary E. Daly, Irish historian
• Reginald Aldworth Daly (1871–1957), Canadian geologist
• Richard Daly, known for the Daly detector, a type of mass spectrometry detector
• Samantha Daly, American mechanical engineer

Religion

• Cahal Daly (1917–2009), Irish Cardinal Archbishop of Armagh
• Edward Daly (bishop) (1933–2016), Irish religious leader
• Edward Celestin Daly (1894–1964), Roman Catholic Bishop of Des Moines, Iowa, 1948–1964
• James Joseph Daly (1921–2013), American Roman Catholic bishop
• Mary Daly, radical feminist and theologian

Other

• Bernard Daly (1858–1920), Pioneer doctor and Oregon politician
• Charlie Daly (1896-1923) executed Irish Republican
• Daniel Daly (1873–1937), US Marine, Double Medal of Honor recipient
• Ed Daly, US entrepreneur behind World Airways
• Edward C. Daly (1914–1941), United States Navy sailor
• Edward M. Daly, U.S. Army General
• Henry Daly (1823–1895), British Army officer
• Ida Daly (1901–1985), American disability community leader
• James Daly (mutineer), British Army mutineer
• John Daly (outlaw) (1839–1864), American western outlaw
• John Donald Daly (1840–1923), California businessman and landowner
• Marcus Daly (1841–1900), Irish-born American copper-mining businessman
• Paddy Daly, soldier in the Irish Republican Army
• Seamus Daly, Irish Republican
• Thomas Aquinas Daly, American contemporary landscape and still-life painter

Fictional Characters

Bill Daly, character in the television show Manifest

See also

• Ó Dálaigh, history of the name