John Sweeney

John Sweeney or Sweeny may refer to:

Politics and law

John Sweeney (Australian politician) (1863–1947), member of the New South Wales Legislative Assembly
John Sweeney (Canadian politician) (1931–2001), Canadian, politician and educator
John Sweeney (labor leader) (1934–2021), American president of AFL-CIO
John Sweeney (Ohio politician) (1924–2016), member of the Ohio House of Representatives
John A. Sweeney (born 1941), American politician in the New Jersey General Assembly
John Bernard Sweeney (1911–1981), judge of the Australian Industrial Court
John E. Sweeney (born 1955), U.S. Representative from New York
John James Sweeney (born 1927), Pennsylvania politician
John Sweeny (judge) (1949–2025), American judge in New York

John Sweeney (1956 or 1957 - 14 August 2026) , English serial killer also known as the Canal killer, murdered American national Melissa Halstead and British national Paula Fields, both of whom he dated. Halstead was murdered in Amsterdam in 1990 and her torso was recovered and later identified in 2008. Fields went missing and was killed in 2001 with her body parts being found in London Canals. He was the subject of the book Living with a Serial Killer (2017) and TV adaptation Until I Kill You (2024)
John Thomas Sweeney (born 1956), former boyfriend and killer of American actress Dominique Dunne

John Sweeney (journalist) (born 1958), British investigative journalist and writer
John A. H. Sweeney (1930–2007), American museum curator and author
John J. Sweeney (professional speaker) (born 1965), American keynote speaker and author

John Sweeney (footballer), Scottish footballer, played for Dunfermline Athletic FC in the 1961 Scottish Cup Final
John Sweeney (police officer) of the Metropolitan Police Service, detective superintendent in charge of Operation Withern
John Sweeny (bishop) (1821–1901), Canadian Roman Catholic bishop
John Sweeny, settler for whom the town of Sweeny, Texas, US, was named