• Thomas O'Neill (politician)
  Thomas O'Neill (politician)
  Thomas James O'Neill was a Liberal party member of the Canadian House of Commons. He was born in Winnipeg, Manitoba and became a locomotive engineer by career....
  
   (1882-1965), Canadian politician, member of Parliament
• Thomas O'Neill (journalist)
  Thomas O'Neill (journalist)
  Thomas M. O'Neill was an American journalist. His work while at the Baltimore Sun landed him on the White House "Enemies List" compiled by the staff of President Richard Nixon....
  
   (1904–1971), American writer for the Baltimore Sun
• Thomas Phillip "Tip" O'Neill
  Tip O'Neill
  Thomas Phillip "Tip" O'Neill, Jr. was an American politician. O'Neill was an outspoken liberal Democrat and influential member of the U.S. Congress, serving in the House of Representatives for 34 years and representing two congressional districts in Massachusetts...
  
  , Jr. (1912–1994), American politician
• Tom O'Neill (ice hockey)
  Tom O'Neill (ice hockey)
  Tom "Windy" O'Neill is a former professional ice hockey player who played 66 games in the National Hockey League. Born in Deseronto, Ontario, he played with the Toronto Maple Leafs...
  
   (born 1923), Canadian ice hockey player
• Thomas Newman O'Neill, Jr.
  Thomas Newman O'Neill, Jr.
  Thomas Newman O'Neill Jr. is a United States federal judge.Born in Hanover, Pennsylvania, O'Neill was in the U.S. Naval Air Reserve from 1948 to 1953. He received an A.B. from Catholic University of America in 1950 and an LL.B. from the University of Pennsylvania in 1953. He was a law clerk to...
  
   (born 1928), United States federal judge
• Thomas P. O'Neill III
  Thomas P. O'Neill III
  Thomas Phillip O'Neill III leads a public relations and government affairs firm called O'Neill and Associates in Boston. He is the son of Tip O'Neill, who served as Speaker of the United States House of Representatives from 1977 to 1987.From 1975 to 1983, O'Neill served as lieutenant governor of...
  
   (born 1945), American politician and leader of a public relations and government affairs firm
• Tommy O'Neill
  Tommy O'Neill
  Tommy O'Neill , is a former Scottish football midfielder.O'Neill began his career with Motherwell, before moving to Clyde in 1977. He is best known for his time at Clyde, spending 7 years at the club, making 216 league appearances, and finding the back of the net on 45 occasions...
  
   (born 1955), Scottish footballer

See also

• Tom O'Neil, American show business journalist and television critic
• Tommy O'Neil
  Tommy O'Neil
  Thomas Patrick "Tommy" O'Neil was an English footballer who played as a defender for various English clubs, including Manchester United, Southport and Tranmere Rovers....
  
   (1952–2006), English footballer
• Thomas O'Neal, football coach