Plunkett

• Richard Plunkett (1340–1393), Lord Chancellor of Ireland, ancestor of the Barons of Dunsany, Barons of Killeen, and Earls of Fingall

• Christopher Plunkett, 1st Baron of Dunsany (1410–1463) and uncle of the 1st Baron of Killeen
• Thomas Fitz-Christopher Plunket (c.1407–1471), Lord Chief Justice of Ireland, brother of the 1st Baron of Dunsany and uncle of the 1st Baron of Killeen
• Sir Thomas Plunket (1440–1519), Chief Justice of the Common Pleas for Ireland, nephew of the 1st Baron of Dunsany and 1st cousin of the 1st Baron of Killeen
• Sir Horace Curzon Plunkett (1854–1932), Irish unionist and agricultural reformer, son of the 16th Baron of Dunsany
• John William Plunkett, 17th Baron of Dunsany (1853–1899)
• Reginald Plunkett (1880–1967), a British admiral, sometimes called Reginald Aylmer Ranfurly Plunkett-Ernle-Erle-Drax or Reginald Drax, son of the 17th Baron of Dunsany
• Edward Plunkett, 18th Baron of Dunsany (1878–1957), an Anglo-Irish writer. His pen name was Lord Dunsany
• Edward John Carlos Plunkett, 20th Baron of Dunsany (1939–2011)
• Randal Plunkett, 21st Baron of Dunsany (1983–)

• Christopher Plunket, 1st Baron Killeen (d. 1445)
• Luke Plunkett, 10th Baron Killeen, 1st Earl of Fingall (d. 1637)
• Christopher Plunkett, 2nd Earl of Fingall (d. 1649)
• Arthur James Plunkett, 8th Earl of Fingall (1759–1836)
• Arthur James Plunkett, 9th Earl of Fingall (1791–1869)
• Saint Oliver Plunkett (1625–1681), Roman Catholic Archbishop of Armagh and martyr, 1st cousin of Luke Plunkett
• Sir Nicholas Plunkett (1602–1680), Irish confederate
• Sir Francis Richard Plunkett (1835–1907), British diplomat

Distant cousins of the families of Dunsany, Killeen, and Fingall

• George Noble Plunkett (1851–1948), Irish republican and papal count
• Joseph Mary Plunkett (1887–1916), Irish republican, son of George Noble Plunkett
• Geraldine "Gerry" (Plunkett) Dillon (1891–1986), daughter of George Noble Plunkett
• George Oliver Plunkett (1894–1944), Irish republican, son of George Noble Plunkett
• Fiona Plunkett (1896 - 1977), daughter of George Noble Plunkett

A title in the Peerage of the United Kingdom

• William Conyngham Plunket, 1st Baron Plunket (1764–1854), Lord Chancellor of Ireland, Whig MP for Dublin University
• Thomas Span Plunket, 2nd Baron Plunket (1792–1866), Bishop of Tuam, Killala and Achon
• John Span Plunket, 3rd Baron Plunket QC (1793–1871)
• Katherine Plunket (1820–1932), the oldest person ever to be born and die in Ireland, daughter of Thomas Span Plunket
• Louisa Lilias Plunket Greene (1833-1891), author, daughter of John Span Plunket
• Frederica Louise Edith Plunket (1838–1886), daughter of Thomas Span Plunket
• William Conyngham Plunket, 4th Baron Plunket (1828–1897), Church of Ireland Bishop of Meath and later Archbishop of Dublin
• David Plunket, 1st Baron Rathmore QC (1838–1919), Conservative MP for Dublin University, son of John Span Plunket
• William Lee Plunket, 5th Baron Plunket (1864–1920), Governor General of New Zealand
• Terence Conyngham Plunket, 6th Baron Plunket (1899–1938)
• Patrick Terence William Span Plunket, 7th Baron Plunket (1923–1975), Equerry to King George IV and later Deputy Master of the Household to Queen Elizabeth II
• Robin Rathmore Plunket, 8th Baron Plunket (1925–2013), supporter and advocate of Zimbabwean Independence and racial harmony
• Tyrone Shaun Terence Plunket, 9th Baron Plunket (born 1966), Page of Honour to HM Queen Elizabeth II

• Oliver Plunkett, 1st Baron Louth (second creation) (d. 1555)

• Adam Plunkett (1903–1992), Scottish footballer
• Catherine Plunkett (born c 1725), eighteenth century Irish violinist
• Charles Peshall Plunkett (1864–1931), US rear admiral
• George Thomas Plunkett, Bishop of Elphin from 1814 to 1827
• George Washington Plunkitt (1842–1924), a New York state senator
• Jim Plunkett, an NFL quarterback
• James Plunkett, pen name of James Plunkett Kelly (1920–2003), an Irish writer
• John Plunket (1664–1738), an Irish Jacobite
• John Plunkett, (1802–1869), Attorney-General of New South Wales
• Liam Plunkett, an English cricketer
• Oliver Plunkett (1884–1971) was Chief Justice of Saint Lucia and later a British judge in Palestine and Egypt,
• Paul Edward Plunkett (1935–2018), American judge
• Peg Plunkett (1727–1797) was a brothel keeper in Dublin
• Richard Plunkett (1788–1832), Beadle or night-constable of Whitechapel, London
• Robert Plunkett (d. 1815), President of Georgetown University
• Roy J. Plunkett (1910–1994), inventor of Teflon
• Sean Plunket, New Zealand broadcast journalist
• Steve Plunkett, singer, guitarist and songwriter for the 1980s band Autograph[2]
• Thomas Plunket, an Irish rifleman in the British 95th Regiment of Foot circa 1809
• Thomas Plunkett (1840–1913), Member of the Queensland Legislative Assembly
• Thomas Plunkett (1841–1885), a United States Army Sergeant, who was awarded the Medal of Honor for his actions at the Battle of Fredericksburg
• Thomas Flood "Tom" Plunkett (1878–1957), Member of the Queensland Legislative Assembly
• Walter Plunkett (1902–1982), an Academy Award-winning costume designer
• William Plunkett, an 18th-century highwayman in England and possibly later a colonel and magistrate in Pennsylvania
• William C. Plunkett (1799–1884), Lieutenant Governor for the Commonwealth of Massachusetts from 1854 to 1855

• Royal New Zealand Plunket Society
• Plunkett, Queensland, a neighbourhood in Australia
• Plunkett railway station, in Plunkett, Queensland
• Plunket Shield, the original New Zealand first-class cricket championship
• Plunket shark or dogfish Centroscymnus plunketi or Proscymnodon plunketi
• Plunkett, Saskatchewan
• Plunketts Creek (disambiguation), multiple uses
• Plunkett & Macleane, 1999 film
• USS Plunkett (DD-431)
• Waterford railway station, in Waterford, County Waterford, Ireland. Named "Plunkett Station" since 1966[3]