Sheehan

Sheehan (also spelt Sheahan) is the Anglicisation of the Irish Gaelic surname Ó Síodhacháin, meaning the peaceful one. It is most common in counties Cork, Kerry and Limerick. It is the 77th most common surname in Ireland. This famous surname is of Dalcassian origin.

Notable people with the surname include:


 * Billy Sheehan (born 1953), American rock bassist
 * Bobby Sheehan (musician) (1968–1999), American rock bassist
 * Cindy Sheehan (born 1957), American anti-war politician and activist
 * Con Sheehan, Irish boxer
 * Cornelius Sheehan (disambiguation), several people
 * D. D. (Daniel Desmond) Sheehan (1873–1948), Irish politician, journalist, and labour leader
 * David Sheehan (1938–2020), American television personality
 * Edward Sheehan (1930–2008), American journalist, diplomat and novelist
 * Erin Sheehan, American politician
 * Fran Sheehan (born 1949), American rock bassist
 * Frank Sheehan (1933–2013), Canadian politician
 * Gary Sheehan (born 1964), Canadian-Swiss ice hockey coach
 * Harold Leeming Sheehan (1900–1988), British endocrinologist, for whom Sheehan's syndrome was named circa 1937
 * Helena Sheehan, American-born Irish academic and former nun
 * James J. Sheehan (born 1937), American historian
 * Jim Sheehan (1889–1967), Australian politician
 * John Sheehan (disambiguation), various
 * Mark Sheehan (1976–2023), guitarist for The Script
 * Michael Sheehan (disambiguation), several people
 * Neil Sheehan (1936–2021), Pulitzer Prize-winning American journalist, husband of Susan Sheehan
 * Paul Sheehan (disambiguation), several people, including:
 * Paul Sheehan (golfer) (born 1977), Australian professional golfer
 * Paul Sheehan (journalist) (born 1951), Australian journalist
 * Patrick Augustine Sheehan (1852–1913), Irish Catholic clergyman and author
 * P. A. Ó Síocháin (1905–1995), Irish journalist, lawyer, author, son of D. D. Sheehan
 * P. J. Sheehan (1933–2020), Irish politician
 * Patty Sheehan (born 1956), American golfer
 * Rhian Sheehan, New Zealand music composer and producer
 * Robert Sheehan (born 1988), Irish actor
 * Samantha Sheehan (born 1986), American artistic gymnast
 * Susan Sheehan (born 1937), Pulitzer Prize-winning American author, wife of Neil Sheehan
 * Thomas Sheehan (disambiguation), several people, including:
 * Tom Sheehan (1894–1982), American pitcher, scout and manager
 * Tom Sheehan (politician) (1891–1955), Australian politician
 * Thomas Sheehan (academic) (born 1941), American philosopher
 * Timothy P. Sheehan (1909–2000), American Congressman
 * Vincent Sheehan (disambiguation), several people
 * William F. Sheehan (1859–1917), American politician
 * Winfield R. Sheehan (1883–1945), American film producer and executive, Fox Studios chief of production 1927–1935