John McLachlan
Australian politician
- Born: 1872-11-02 (Naracoorte)
- Died: 1956-05-28 (East Melbourne)
- Country of citizenship: Australia
- Occupation: politician
- Member of political party: Nationalist Party of Australia
- Position held: Member of the Australian Senate (electoral district: South Australia; period: 1926-02-24 through 1944-06-30; replaces: John Newland)
- Educated at: University of Adelaide
- VIAF ID: https://viaf.org/viaf/114144648538201483442
- WorldCat Identities ID: https://worldcat.org/identities/viaf-114144648538201483442