O'Neill (disambiguation)

O'Neill, Ó Néill, O'Neil, O'Neal, or Uí Néill may refer to:

O'Neill dynasty, for information on the original O'Neill family, their ancestors, and other related families
Uí Néill, for information on the Ui Neill dynasty
O'Neill (surname), includes surname origins and information
- List of people with the surname O'Neill list of individuals under the names O'Neal, O'Neil, O'Neill and other variations

O'Neill, O'Neil, O'Neal and Ui Néill may also refer to numerous other articles. A more comprehensive list follows

Places

O'Neill's Adventureland, a small amusement park located in Edmondson Park, New South Wales, Australia.

Archbishop M.C. O'Neill High School, a Catholic secondary education institute located in the Coronation Park neighbourhood of north Regina, Saskatchewan, Canada.
O'Neill Collegiate and Vocational Institute, located in Oshawa, Ontario within the Durham District School Board.

O'Neal Island, a member of the San Juan Islands of Washington state, USA
Buckey O'Neill Cabin, a cabin.
Eugene O'Neill National Historic Site, located in Danville, California, the site which preserves Tao House, the hillside home of playwright, Eugene O'Neill.
Eugene O'Neill Theater Center, a not-for-profit theater company located in Connecticut.
Eugene O'Neill Theatre, a Broadway theatre located in midtown-Manhattan.
O'Neill, Nebraska, a city in Holt County, Nebraska, United States.
O'Neill Building, a landmark former department store, located at 655 Sixth Avenue in New York City.
O'Neill Center, multi-purpose athletic complex at Western Connecticut State University.
O'Neill Dam, an earthfill dam on San Luis Creek west of Los Banos, California.
O'Neill House Office Building, a congressional office building in Washington, D.C.
O'Neill House Office Building (1947), a former congressional office building in Washington, D.C.; demolished in 2002.
O'Neill Forebay, a forebay to the San Luis Reservoir west of Los Banos, California.
O'Neill Tunnel, a highway tunnel built in Boston, Massachusetts.
Thomas P. O'Neill Jr. Federal Building (Boston), an administrative center of the federal government in Boston, Massachusetts.

Baron O'Neill, a title in the Peerage of the United Kingdom.
O'Neill baronets, two in the Baronetage of Ireland, and one in the Baronetage of the United Kingdom.
Viscount O'Neill, a title in the Peerage of Ireland.

Jack O'Neill, character in the science fiction franchise Stargate
Tim O'Neill. character in the science fiction series seaQuest DSV; see List of main characters of seaQuest DSV season 1
April O'Neil, character in the Teenage Mutant Ninja Turtles franchise
The Trials of Rosie O'Neill, an American television drama series that aired on CBS from 1990 to 1992

O'Neill (brand), a surfwear and equipment brand that was started in San Francisco, California
O'Neill Sea Odyssey, a non-profit organization located in Santa Cruz, California
O'Neills, the largest manufacturer of sportswear in Ireland
Sandler O'Neill and Partners, a New York City-based investment banking firm.
O'Neal Steel, Inc., American metal company.

Dennis O'Neill case
O'Neill v Phillips, a UK company law case on an action for unfair prejudice.
Sheff v. O'Neill, a Connecticut Supreme Court case regarding civil rights and the right to education

Ui Néill
Eugene O'Neill Award, one of Sweden's finest acting awards for actors of the stage
O'Neill World Cup of Surfing, a prestigious event in surfing held annually at Sunset Beach in Hawaii
O'Neill Sebastian Inlet Pro, a surfing event
O'Neill ministry
Tip O'Neill Award, an award given out by the Canadian Baseball Hall of Fame
USS O'Neill (DE-188), a Cannon-class destroyer escort in the United States Navy
Stealing O'Neal, Australian band
The O'Neill Brothers, American instrumental duo