Browse Institutions - M
- Macquarie Hospital (1993 - )
- Macquarie Hospital North Ryde ( - 1993)
- Marooma Private Hospital (1930 - 1990s)
- Marooma Private Psychiatric Hospital (1928 - 1929)
- Marsden Centre
- Marsden Hospital (1969 - )
- Maryborough Reception House (c. 1869 - )
- May Day Hills Hospital
- May Day Hills Training Centre ( - 1990s)
- Mental Diseases Hospital, New Norfolk (1915 - 1937)
- Merton Licensed House (1906 - 1954)
- Military Mental Hospital (1915 - 1920s)
- Military Mental Hospital / Block (1915 - 1924)
- Millbrook Rise Psychopathic Hospital (1934 - 1968)
- Milson Island Mental Hospital
- Minda Home (1898 - )
- Miss Parsons
- Mont Park Hospital for the Insane (1912 - 1932)
- Mont Park Mental Hospital (1933 - 1959)
- Mont Park Psychiatric Hospital (1959 - 1990s)
- Moorcroft House Private Asylum (1841 - 1852)
- Morisset Hospital (1909 - )
- Morisset Hospital for the Insane (1909 - 1914)
- Morisset Mental Hospital (1915 - )
- Mossman Hall
- Mount St Margaret's Hospital (1890s - 1992)
- Mt Ida Licensed House (1906 - 1928)
