John or "Jack" Carney may refer to:
John Carney (American football) (born 1964), American football placekicker
John Carney (director) (born 1972), Irish film and TV director
John Carney (magician) (born 1958), sleight of hand artist, author and actor
John Carney (politician) (born 1956), Governor of Delaware and former U.S. Representative
John Carney (radio), radio talk show host on KMOX in St. Louis
John F. Carney (born 1941), chancellor of Missouri University of Science and Technology
John J. Carney (1940–1995), British actor
John Patrick Carney (born 1976), Democratic member of the Ohio House of Representatives
John "Bam" Carney (born 1969), member of the Kentucky House of Representatives
Jack Carney (baseball) (1866–1925), professional baseball player
Jack Carney (footballer) (1909–1981), Australian rules footballer
