Frederick Albert McDonald (7 December 1872 – disappeared April 1926) was an Australian politician and possible murder victim.
Educated at public schools and at the University of Sydney, McDonald became a teacher and rose to become President of the Teachers Federation of New South Wales.
In the 1922 federal election he contested the new seat of Barton for the Labor Party, defeating the Nationalist member for the abolished seat of Illawarra, Hector Lamond.