- Nambucca River Co-operative Society Limited
- Namoi Pastoral Company
- Nandewar Historical Society
- Narrandera Argus Pty Ltd
- Narrandera Parish, Anglican Diocese of Riverina
- National Bank of Australia Limited, Wagga Wagga Branch
- National Council of Wool Selling Brokers of Australia
- National Country Party (New South Wales)
- National Parks Association of New South Wales Inc (1974 - 1989), Armidale Branch
- National Tertiary Education Union (1993 - ), Wagga Wagga Branch
- National Trust of Australia (NSW), Riverina Branch
- NEGS, New England Girls' School
- Nelson and Horsfall Pty Ltd
- Netley Station
- New England Girls' School, NEGS
- New England Mutual Building & Investment Society
- New England New State Movement
- New England New State Movement, Armidale
- New England New State Movement - Anne Philp
- New England Rugby Union
- New England Theatre Company
- New England University College (1938 - 1954)
- New England, North and Northwest Producers Co Ltd
- New Opportunities for Women (1965 - 1970), NOW
- New South Wales Association of University Women Graduates (1963 - 1976)
- New South Wales Co-operative Wholesale Society Ltd
- New South Wales Ex-POWs' Association (1958 - 1997), Wagga Wagga Branch
- New South Wales Farmers Association, Uranquinty Branch
- New South Wales Teachers Federation (1929 - 1971)
- New South Wales Vice-Chancellors' Conference
- New South Wales Women Justices' Association, Wagga Wagga Branch
- New State Movement Northern Region
- New State Movement, New England
- The New Theatre, ('The Dungeon'), Newcastle Trades Hall (c. 1950 - 1974)
- New Zealand Loan & Mercantile Agency Limited (c. 1924 - )
- Newcastle and Hunter District Historical Society
- Newcastle and Northern District Operative Bakers Society (1924 - 1954)
- Newcastle and Northumberland Benevolent Society (1886 - 1948)
- Newcastle Branch, Chamber of Manufacturers of New South Wales
- Newcastle Business Men's Club
- Newcastle Glassworks
- Newcastle Oral History Collection
- Newcastle Steel Works
- Newcastle Trades Hall Council (1878 - 1971)
- Newcastle Wallsend Coal Company
- Newcastle Workers Club (1950 - 1955)
- Newell, Peter
- Newling, Cecil Bede (1883 - 1975)
- Newton Boyd Station
- Nichol, Alan
- Nickson, Thomas
- Norco Co-operative Ltd
- North Illawarra Teachers Association (1956 - 1981), Teachers Federation
- North Wagga Public School Centenary Committee (1980)
- North Wagga Public School Parents and Citizens' Association
- Northern Daily Leader [Newspaper]
- Northern New State Movement
- Northern New States League Upper Hunter District
- Northumberland and Northern New South Wales Bakers Society (1954 - 1971)
- Northumberland and Permanent Building Investment, Land and Loan Society.
- Northumberland Television Limited
- Norton, Albert (1836 - 1914)
- Norton, Edward
- NOW, New Opportunities for Women (1965 - 1970)
- NSW Branch Council, Library Association of Australia
- NSW Branch, Australasian Meat Industry Employees Union (1906 - 1972)
- NTEU
- see National Tertiary Education Union (1993 - ), Wagga Wagga Branch
- Nulalbin Station
- Nundle, Manchester Unity Independent Order of Oddfellows
- Nyngan, Manchester Unity Independent Order of Oddfellows
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