Browse Organisations - M
- Male Orphan School (1819 - 1850)
- Manly Boys' Probationary Home (1903 - ?)
- Manly Far West Home
- see Royal Far West (1924 - ) - Manly Industrial School and Orphanage (1881 - 1910)
- Marist Brothers (1872 - )
- Marist Youth Care
- Marrickville Children's Residence (1979 - 1985?)
- Marrickville Maternity Home
- see Hopeleigh Maternity Home (c. 1910 - 1956) - Maryville Mothers' Hospital (1924 - 1933)
- Masonic Orphan School
- see Masonic Orphan Schools (1922 - c. 1924) - Masonic Orphan Schools (1922 - c. 1924)
- The Mater
- see Mater Misericordiae Hospital (1906 - 1982) - Mater Dei Orphanage (1910 - 1957)
- Mater Dei School (1957 - )
- Mater General Hospital
- see Mater Misericordiae Hospital (1906 - 1982) - Mater Maternity Hospital
- see Mater Misericordiae Hospital (1906 - 1982) - Mater Misericordiae Hospital (1906 - 1982)
- Mater Misericordiae Hospital for Women and Children
- see Mater Misericordiae Hospital (1906 - 1982) - Mater Private Hospital
- see Mater Misericordiae Hospital (1906 - 1982) - Mater Public Hospital
- see Mater Misericordiae Hospital (1906 - 1982) - May Villa (1919 - 1960?)
- Mayfield Home
- see Murray Dwyer Boys' Home (1933 - 1969) - McCredie Cottage (1970 - 1993)
- Melrose (1952 - 1980)
- Melrose Home for Boys
- see Melrose (1952 - 1980) - Mercy Family Centre, Waitara (1977 - 2001)
- Mercy Family Life Centre, Waitara
- see Mercy Family Centre, Waitara (1977 - 2001) - Mercy Sisters
- see Institute of the Sisters of Mercy of Australia (1981 - 2011), ISMA - Mercy Sisters
- see Sisters of Mercy, Bathurst Congregational Archives - Mercy Sisters
- see Sisters of Mercy, Goulburn Congregation (1859 - 2011) - Mercy Sisters
- see Sisters of Mercy, Grafton Congregation (1884 - 2011) - Mercy Sisters
- see Sisters of Mercy, Gunnedah Congregation (1887 - 2011) - Mercy Sisters
- see Sisters of Mercy, North Sydney Congregation (1865 - ) - Mercy Sisters
- see Sisters of Mercy, Parramatta Congregation (1888 - ) - Mercy Sisters
- see Sisters of Mercy, Singleton Congregation (1875 - 2011) - Mercy Sisters
- see The Institute of the Sisters of Mercy of Australia and Papua New Guinea (2011 - ), ISMAPNG - Methodist Adoption Agency ( - 1970s)
- Methodist Church
- see Central Methodist Mission, Sydney (1885 - 1977) - Methodist Church
- see Wesley Mission, Sydney (1977 - ) - Methodist Church
- see Wesleyan Methodist Church of New South Wales (1912 - ) - Methodist Church (1812 - 1885)
- Methodist Crusaders Camp
- see Crusaders Camp Mission Hostel (1940? - 1946?) - Methodist Department of Christian Citizenship ( - 1977)
- Metropolitan Boys' Remand Home
- see Metropolitan Boys' Shelter (1911 - 1983) - Metropolitan Boys' Shelter (1911 - 1983)
- Metropolitan Children's Court (1912 - )
- Metropolitan Girls' Remand Home
- see Bidura (1920 - 1977) - Metropolitan Girls' Shelter
- see Bidura (1920 - 1977) - Metropolitan Girls Shelter
- see Ormond House (II) (1884 - 1923), State Children's Relief Department - Metropolitan Missions
- see Presbyterian Metropolitan Mission (1900 - 1973?) - Milleewa
- see Charlton Boys' Home, Ashfield (1966 - 1991) - Milleewa Estate
- see Milleewa Home for Boys (1919 - 1966) - Milleewa Home for Boys (1919 - 1966)
- Millions Club (1912 - )
- Milson Island (1924 - 1973)
- Minali
- see Minali Receiving and Assessment Centre (1975? - 1998) - Minali Receiving and Assessment Centre (1975? - 1998)
- Minali Receiving Home
- see Minali Receiving and Assessment Centre (1975? - 1998) - Minda Children's Court (1966? - 1991)
- Minda Juvenile Detention Centre
- see Minda Remand Centre (1966 - 2003) - Minda Juvenile Justice Centre
- see Minda Remand Centre (1966 - 2003) - Minda Remand Centre (1966 - 2003)
- 'Minden'
- see Church of England Girls' Home (1913 - 1970s) - 'Minnamurra' Family Group Home (1975 - 1999)
- Mission Australia (1996 - )
- Mitchell and Dixson Collections
- see Mitchell Library (1910 - ), State Library of New South Wales - Mitchell Library (1910 - ), State Library of New South Wales
- Mittagong Cottage Homes (1885 - 1976)
- Mittagong Farm Home for Boys (1906 - 1947)
- Mittagong Training School For Boys (1947 - 1976)
- Molong Farm School
- see Fairbridge Farm School (1938 - 1973) - Monte Pio Girls' Home
- see Monte Pio Orphanage (1960 - 1973) - Monte Pio Orphanage (1960 - 1973)
- Montrose (1920s - 2000s)
- Montrose Child Protection Centre
- see Montrose (1920s - 2000s) - Montrose Child Protection Unit
- see Montrose (1920s - 2000s) - 'Montrose' Family Group Home (1965 - 1986)
- Montrose Infants' Home
- see Montrose (1920s - 2000s) - Montrose Maternity Hospital
- see Montrose (1920s - 2000s) - Morpeth Home for Children (1920 - 1964)
- Mothercraft Nurses
- see Tresillian Mothercraft Homes (1918 - ), Royal Society for the Welfare of Mothers and Babies - Mount Magdala
- see St Magdalen's Refuge Buckingham Street (1903 - 1936) - Mount Penang Detention Centre (1988 - 1991)
- Mount Penang Training School for Boys (1946 - 1987)
- Mowbray Park (1929 - 1959)
- Mowbray Park Home
- see Mowbray Park (1929 - 1959) - Mowbray Park Home for Barnardo Boys
- see Mowbray Park (1929 - 1959) - Mt Gibraltar (1930 - 1974)
- Mt Penang
- see Gosford Training School (1923 - 1945) - Mt Penang
- see Mount Penang Detention Centre (1988 - 1991) - Mt Penang
- see Mount Penang Training School for Boys (1946 - 1987) - Mt Penang
- see Mt Penang Juvenile Justice Centre (1991 - 1999) - Mt Penang Detention Centre
- see Mount Penang Training School for Boys (1946 - 1987) - Mt Penang Juvenile Justice Centre (1991 - 1999)
- Mud Island
- see Milson Island (1924 - 1973) - Mulgoa Half-Caste Home
- see Church Missionary Society Home for Half-Castes, Mulgoa (1942 - c. 1945) - Mulgoa Home
- see Church Missionary Society Home for Half-Castes, Mulgoa (1942 - c. 1945) - Murray Dwyer Boys' Home (1933 - 1969)
- Murray Dwyer Memorial Orphanage
- see Murray Dwyer Boys' Home (1933 - 1969) - Murray Vale (1958 - 1983)
- Myee (1926 - 1970s)
- Myee Babies Home
- see Myee (1926 - 1970s)
