John Molloy is the name of:
- John Molloy (Australian settler), early settler in Western Australia (1786–1867) husband of Georgiana Molloy
- John Patrick Molloy (1873–1948), Canadian veterinarian and politician
- John Molloy (priest) (died 1922), Archdeacon of Raphoe from 1900
- John Molloy (musician) (1960-2018), British musician and game designer.
