N-O
- Vladimír Neff (1909–1983)
- John Henry Newman (1801-1890)
- Nerida Newton (born 1972)
- Mary Novik (born 1945)
- Robert Nye (born 1939)
- Naseem Hijazi (born 1914)
- Patrick O'Brian (1914–2000)
- Scott Oden (born 1967)
- Zoe Oldenbourg (1916–2002)
- Carola Oman (1897–1978)
- Anthony O'Neill (born 1964)
- Baroness Orczy (1865–1947)
Read more about this topic: List Of Historical Novelists