• Jack Lyons (financier) (1916–2008), British entrepreneur and philanthropist
• Jack Lyons (cricketer)
  Jack Lyons (cricketer)
  John James "Jack or J.J." Lyons was an Australian cricketer who played in 14 Tests between 1887 and 1897.-External links:*...
  
   (1863–1927), Australian player
• Jack Lyons (soccer)
  Jack Lyons (soccer)
  John P. "Jack" Lyons was a Scottish-American soccer fullback who played part of two season in the American Soccer League and earned two caps with the United States men's national soccer team in 1928.-Professional:...
  
   (born c. 1900s), American player
• J. B. Lyons (1922–2007), Jack Binignus Lyons, Irish medical historian and writer

See also

• John Lyons (disambiguation)
  John Lyons (disambiguation)
  John Lyons may refer to:* John Lyons , American football coach* John Lyons , Bishop of Ontario, 1932–1952* John Lyons , Labour Party politician...
  
  
• Jack Lyon, New Zealand politician