Surname edit

• Austin Flannery (1925–2008), a Dominican priest, editor, publisher and social justice campaigner
• Brian Flannery (born 1974), Irish hurler
• Brian P. Flannery, physicist who variously worked as an astrophysicist and as a climate modeller for ExxonMobil
• Bridget Flannery (born 1959), Irish painter
• Bryan Flannery (born 1967), American politician
• Chris Flannery (rugby league) (born 1980), Australian rugby player
• Christopher Dale Flannery (1948–1985), Australian hitman
• Constance O'Day-Flannery, American author
• D. Flannery, rugby league footballer
• Daniel Flannery (born 1952), American artist, producer, director, and designer
• Denis Flannery (1928–2012), Australian rugby player
• Edward Flannery (1912–1998), American priest and author
• Fearghal Flannery (born 1991), Irish hurler
• Frank Flannery, political consultant and Fine Gael's former Director of Organisations and Strategy
• Harry Flannery (1900–1975), America journalist and author
• J. Harold Flannery (1898–1961), American politician
• Jack Flannery (1952–2010), American off-road racing driver
• James Flannery (Ohio politician) (1938–2005), American politician
• James Fortescue Flannery (1851–1943), British engineer and politician
• Jerry Flannery (born 1978), Irish rugby player
• John Flannery (American football) (born 1969), American football player
• John L. Flannery (born 1962), American business executive
• Jude Flannery (died 1997), American triathlete
• Kate Flannery (born 1964), American actress
• Kent V. Flannery (born 1934), American archaeologist
• Lot Flannery (1836–1922), American sculptor
• Mark Flannery, American economist
• Martin Flannery (Australian politician) (1885–1935), Australian politician
• Martin Flannery (British politician) (1918–2006), British politician
• Michael Flannery (1902–1994), Irish republican who fought in the Irish War of Independence and the Irish Civil War
• Mick Flannery (born 1983), Irish singer-songwriter
• Nathan Flannery (born 1992), New Zealand rower
• Niall Flannery (born 1991), English hurdler
• Nickoletta Flannery (born 1999), Australian footballer
• Paddy Flannery (born 1976), British football player
• Pat Flannery (born 1957), American basketball coach
• Paula Flannery (born 1974), New Zealand cricketer
• Peter Flannery (born 1951), British playwright
• Ray Flannery (physicist) (1941–2013), Irish theoretical physicist
• Sarah Flannery (born 1982), Irish computer scientist
• Susan Flannery (born 1939), American actress
• Thomas Aquinas Flannery (1918–2007), American judge
• Tim Flannery (baseball) (born 1957), American baseball player
• Tim Flannery (born 1956), Australian scientist and activist
• Tom Flannery (born 1966), American singer-songwriter
• Tony Flannery (born 1948), Irish writer
• William Flannery (1898–1959), American art director
• William Flannery (bridge), American bridge player

Given name edit

• Flannery O'Connor (1925–1964), American writer

• Cape Flannery, at the west end of Thule Island in the South Sandwich Islands
• Flannery baronets, a title in the Baronetage of the United Kingdom
• Flannery (Pokémon), a fictional character in the Pokémon universe