title: Leahy (surname)
text: # Leahy (surname)
  
  Leahy is an Irish surname, originating in Munster, and now found in Cork, Kerry, Limerick, and Tipperary.
  
  It is usually an anglicised form of the Irish language surname Ó Laochdha ("descendant of $Laochdha"),^{:191}$ which ultimately derives from Old Irish láechda, láech ("warrior-like, pertaining to a warrior") and appears as a personal sobriquet at least as early as the Book of Lismore (circa 1408–11). However, Leahy may also represent an anglicisation of less common names, including Mac Fhlaithimh and Ó Flaithimh, Mac an Leagha, Ó Leathaigh, Ó Liathaigh, Ó Líthe, Ó Laidhe, Ó Laidhigh, Ó Laithimh, Ó'Lathaigh, Ó Laithmhe, Ó Laochdha, Ó Laoi, Ó Laoidhigh, or Ó Laoithe.
  
  Not to be confused with Lahey which means "Ruler" and is a separate family lineage. Other anglicised forms of the name include Leahey, Lahy, Leehy, Leehey, Lahaie, Lahaye, $Lehait,^{:15}^{:188}^{:104–106}$ Claffey, Laffey, and Lee.
  
  ## Notable bearers of the name
  
  * Ann Leahy (born 1971), Australian politician
  * Bernie Leahy (1908-1978), American footballer.
  * Con Leahy (1880–1921), Irish athlete
  * Edward Daniel Leahy (1797–1875), Irish painter
  * Edward L. Leahy (1886–1953), United States Senator
  * Emmett Leahy (1910–1964), American archivist and entrepreneur
  * Frank Lahey (1880–1953), surgeon, medical educator, and founder of Boston's Lahey Clinic
  * Frank Leahy (1908–1973), American football player and coach, athletics administrator and sports executive
  * Georgie Leahy (1938–2017), Irish hurling manager, coach, selector and player
  * Grainne Leahy (born 1966), Irish cricketer
  * Sir John Leahy (diplomat) (1928–2015), British diplomat
  * John Leahy (executive) (born 1950), American businessman, executive at Airbus
  * John Leahy (born 1969), former Irish hurler
  * John O'Lahy (executed 5 Jul 1581), sailor, and one of the Wexford Martyrs
  * Kevin Leahy (disambiguation)
  * Kristine Leahy (born 1986), American television host and former sports reporter
  * Luke Leahy (born 1992), English footballer
  * Margaret Leahy (1902–1967), British actress
  * Michael Leahy (disambiguation)
  * Patrick Leahy (disambiguation)
  * Peter Leahy (born 1952), Chief of the Australian Army
  * Sean Leahy (born 1958), Australian cartoonist
  * Sir Terry Leahy (born 1956), English businessman
  * Tom Leahy (1888–1964), Australian rules footballer
  * William D. Leahy (1875–1959), American naval officer and ambassador
  * William Harrington Leahy (1904–1986), United States Navy admiral
  * William P. Leahy (born 1948), President of Boston College
  